I think the main thing is to pick one system and work on that. I have my FPGA Amigas, A1200s, A2000, A3000 and A4000 and if I try and spend time on all of them then I get nowhere.
Decide what you actually need and then look at the single system that will allow you to do it and focus on that.
If you're ever use the I10 to cross into Louisiana then give me a call, I'll be glad to help if I can, or perhaps I can assist by sending you a preconfigured hard drive or CF Card to boot from. :-)