CHECK THIS OUT 1/36 Micro-T
That is the Micro T thread. I sugest you have a look at it.
I have one that I play with at work when I am bored. I also dont think the price is unreasonable at all. It is a fully ready to run kit with about the same number of parts as a Mini T. l have probably spent atleast $80 in spare parts and hopups for it but all it really needs IMO is a set of threaded axle shafts and a bearing kit parts wise.
The only thing I don't like is the delay between forward and reverse. Though this is probably done to protect all the tiny plastic gears.