The Dapol chassis block was about the right size but the motor is held in place by the body, and also in the wrong place. With a lot of careful packing and the motor turned the other way it all fits into the longboiler and can be held in place by a pair of screws drilled and tapped each end of the chassis block.

That way around even the NEM pocket for the front end is in the right spot.

I guess I should have used a black terrier... paintbrush time to follow.

Now what to do with the terrier body. Anyone want one for a 2fs chassis building project ;-)