My website has the Swedish TLD but is focused on a Dutch audience. Google sees it as Swedish. So I have to transfer from Bloei.se to Bloeise.nl. I see the following steps and have some additional questions: STEPSGet my backlink profileChange or ask for changes on any links I canImplement 301's for the best links I can't change. Would I also need 301's for links shared on G+?Can I transfer the pluses my page got or do I have to start all over? 
When changing my domain name, can I preserve all the Google +1?
domains;transfer