I'd recommend buying a seriously cheap PC and using it as a server.
Flatten it, install Ubuntu Server and work through http://docs.moodle.org/26/en/Installing_Moodle
Play around with it, mess it up, install some extra blocks, modules and themes, flatten it and start again.
When I started out that's what I did and I learned a lot, still learning of course and still finding new things. Main thing to look at is the pedagogy to be honest, how are you going to use it, where are you going to use it, how will the learners react to it etc
Just remember "the only daft question is the one you didn't ask".