Seat for mini-ex

I need a new seat for my Mitsubishi 3.5 tonner. It doesn't have joysticks so I don't have the luxury of sitting back and working, instead there are full motion ISO levers. The OEM seat is in perfect condition but was designed for people of slighter stature, hence my back aches. Northern Tool has a good selection, but I was wondering what other operators have and like.

Thanks.