HL did have some IR Shermans out in the UK atleast, but probably getting hard to find now

To answer the original question - You can't get the Matorro tanks that were originally under discussion any more. Things have moved on, and to be honest, got a whole lot better since those days.

@ Shaun - I believe Torro are a German company - www.torro-shop.de I think http://www.rctank.de/ stocks them as well.