With all the shit kickers have been getting these past weeks I gotta say that Lions kicker is a fucking beast . <| sep |> You want to save the rover as an assembly . There are buttons in the topleft when in the VAB where you should be able to find it <| sep |> Yeah , going to the z 170 mb would also increase the price . The size of the MB doesnt really matter unless you want it to be small . or have a small case , you dont have a case yet so you can pick any size you want . I personally prefer bigger Motherboards , but usually i go for whats cheaper , right now , my current MB is a miniATX ! Size doesnt really matter as long as it has the connections you want , enough usb ports and whatever . For picking the Case , go just limit the price range , with that miniATX MB you can pick any size of case as they will all work with it . I wouldnt be able to recommend a case because i dont own any i could say its good , id go for looks on what i like i personally like non flashy cases , a black box would be fine for me But you might want one with leds and an acrilic window or something , lol ! Id say , pick a cheapish case that has good reviews , and invest the savings on a SSD , OR a Mechanical Keyboard , OR a good gaming mouse . Or maybe an aftermarket cooler the evo 212 is very good