I bought a Mantua 4-4-2 a couple of years ago that ran fairly nice but the boiler was in rough shape.  I've recently come across a couple of autions for 2-8-0 spectrum boilers on Ebay and was debating using the 2-8-0 boiler on the 4-4-2 chassis.  Anyone see too many problems wit hthe idea?  One snag I was wondering about is the driver size on the 2-8-0 vs the 4-6-0.

I have a couple of 2-8-0's that I don't want to take apart but comparing the boiler off the 4-4-2 eyeball wise it looks like a fairly close fit length wise.   I saw in an older thread some with ideas about the 4-6-0 boiler being used but I'm hoping to avoid taking a newer locomotive apart for the "kitbash"

Thanks
Par