Wow - two things impress me straight away
1. Someone from Inverness modelling the southern electric - has to be a first!
2. Didn't know WW did 4-BEP replacement sides. Now that is a cracking idea. The buffet needed is nowhere close to either an RU or an RMB.
How did you do the windows? did you shuffle the existing 4-CEP windows around to keep the style of window, or are they entirely on the brass sheet and painted silver?
In my to do list I have a 4-TC and 4-REP combo putting two power cars in the REP unit, to allow the 33/1 to pull the TC unit when required, and using BHE overlays I already have, but they are a trifle short on height (but window spacing spot on).
Great conversion, as I said before.