djdojo is right.
Especially as a learner it is good practice to fly the same kites.
Personally I wouldnt put a beginner on a Rebel. Nothing wrong with them just a bit more technical and 'different' than a beginner needs to deal with. IMO the Rev would be a better choice at your stage, but not by a whole lot, so if you already have a rebel then go a rebel.
And Yes - there are lots around. We have an 11M in great condition in our pre-loved "op" shop as we speak.

If you go to the right school (ie most of the 'good' ones) you will probably be offered a package which will save you heaps on your gear set up. New or Used.