Well, it should be an easy repaint! The fuel tank assembly wouldn't be too hard to replicate with a 3D print. I wasn't going to do anything with the dummy unit but found some photos of these doubleheaded on the internet and in Staufer's Pennsy Power #1.
I wanted to remove the dynamic brake fan/vent details but the way MTH put them on, there's too much paint and fill work to do. I may live with them. I am hoping to get the rest of the parts this week. I ordered some flanged wheels to replace the plastic dummies and some PSC parts to detail the new pilots.