Wish I could sing properly

Sounds like you're off to a good start. In terms of space, I tend to build in my bedroom (I have to admit, my parents are very tolerant of this!) and only really go and work in the garden if what I need to do is a bit too much for in the house (sparks from grinding and such) so any space really should do

Definitely set up a build thread when you start building; I for one enjoy seeing and hearing how robots are coming together. You can either ask for advice in that thread or here, wherever you do we'll be happy to answer