The model by Ju88 would be very much wellcomed, as it is much better than the current one (Also by Ju88 IIRC), but we also would need some more stuff:
1- A new interior, for which probably kitbashing parts of existing ones and creating a more cramped one with the S-class as base would suffice
2- Correct periscope view (reticle)
3- New graphics for the TDC, so that it looks like the british fruit machine (It operates right now almost spot on, as the Position Keeper does the same job except the Fruit Machine did not update Gyro Angles, but instead simply buzzed when the target passed the spot for a 0º or 90º shot)
4- Voice pack, british accented and with correct phraseology (This would be much lower on the priority list)
2 & 3 should be easy to do for anyone with a Paint program and some time.