As I imagine quite a few people do, I now find myself in possession of two black/orange T-70s (one Painted by me, one from HOTR) and only need one, so I'd like to revert the HOTR one to a paint scheme matching the standard grey T-70 from the core and expansion. (though I'm going to give it red highlights).

Has anyone else done this yet? and if so, what paint did you use for the grey?