Yes, you'll have to start somewhere...
You can search on instructables.com (or .org or whatever) for irobot mods. I've seen some there, but I don't think they will be basic like you'd want.
My two cents is that it would be a good idea to replicate Admins project.
because if cooldog, with exactly 8 typo's in that one line of comment, can understand it it's bound to be easy...
Sorry cooldog
, it was too tempting.