Rather than messing around with a '90s Pullmor hudson why not just get an MTH J1. They all have big Pittmans, spoke drivers, and some even had PT tenders. Then if you want TMCC just gut the electronics and put in ERR. Keep an eye on ebay for wrecked Hudsons or the PS1 20-3020-1 which show up all the time for small money.
From around 2005.
Pete