Should I get a Second Bachelors and Masters to Make My PhD as Broad/Interdisciplinary as Possible? I've currently decided to get a second bachelor's in Statistics over 1.5 years after finishing my first bachelor's in math. Both of these degrees are debt free and follow a passion of mine. The next goal is to work in industry for about three years at my parent's home while taking one class a semester in Computer Science online to save for a master's in Statistics with Thesis where I hope to take some really advanced courses over two years.

The big idea is that I could grab courses like Categorical Data Analysis, Multivariate Statistics, Nonparametric stats (and maybe substitute mathematical stats 1 and 2 with graduate Measure Theory) etc during my second B.S. and then focus on the really advanced statistics courses and math courses during my masters like advanced graduate topology, experimental design and bayesian analysis

Then I would start a PhD in say Computer Science focused on Machine Learning to develop cutting edge statistical tools based on theoretical principles in Statistics, computational topology, measure theory etc.

Would this be too much education? I want to do more than just take classes on various statistical methods before a PhD.

Edit: I should add that the answer I received from r/datascience was to go straight into a Masters program. But since I can't afford that yet, I guess the answer in my circumstances is that I can do a second B.S. in Stats or Comp Sci if I'm making good money near my parent's home?
I would agree with the answer from r/datascience. Go straight to MS. 

The main reason you cited for waiting on the MS was that you could not afford to pay cash for grad school and you didn't want a loan. Keep in mind that cash and loans are not the only two options.  There is a significant amount of financial assistance available for grad school. E.g. you might be able to get a teaching assistantship (teach an undergrad class in exchange for tuition), research assistantship (work on a professor's research project in exchange for tuition), or a fellowship/scholarship.  I got all three of these at various points in my program. I have a MS and a Ph D and I literally paid zero tuition for both of them. My wife and my sister both have MS and neither one paid any tuition. 

Research assistantship is very common in technical fields where corporations sponsor research projects. E.g. Apple or Microsoft might give a CS professor $200k to study some challenging problem. The professor will spend that $200k to hire grad students to do the work.  You work on the project part time, say 20 hours a week, and that pays your tuition. Now if you were talking about studying history or poetry or violin performance, then money is a lot harder to find. But Comp Sci, you have a good chance at finding some money.  

The only reason I can think of to do a second BS before the MS would be if your BS was in such a completely unrelated area that you would be unlikely to get admitted to the graduate program. For example, if you had a BS in English Literature or Violin Performance, you would be unlikely to get into an graduate program in Statistic or Comp Science.  But I don't think that applies here.  With a Math degree (assuming you have good GPA / GRE scores) you should be able to get into a good Statistics or Computer Science program.  

EDIT:
Let me try to put this a different way.  To a large degree, the value of a BS is less about the specific facts/skills that you learned, and more about proving to a potential employer or grad school that you are a hard worker (see Signaling theory).  Opinions vary, but let's says it's 50% about what you learn, and 50% proving you're a hard worker. If you get a second BS, it's only worth half as much as the first, as you've already proven you can do work at the BS level. If you get an MS, you now prove to potential employers that you can do work at the MS level, which is worth a lot more than proving you can work at the BS level. Let's just say that an MS is worth twice as much as the first BS for this. Then an MS is worth four times as much as a second BS. And since it will take a similar amount of time, why waste your time getting the less valuable thing?