Hi Taz,
Good work on the coach, but I agree with Mallard that it's perhaps easier to join the sides to the ends completely square if you leave fitting the end steps, etc until later.
Anyway, can't hold you up now, so pm me your address and I'll send you the correct pack of whitemetal undergubbins.
We're closed for a holiday next week, so may not get it in the post until we return.
Geoff
Comet Models