Hi Matt,
Out of interest, which drawings are you using for Victoria?
I produced a set of CAD drawings which were based on an original set of blueprints by Donaldson and Piper. I've had a quick look and it looks as though there should be plenty of clearance between the axle box and the cylinder block. The flange on the axle box may come close to the cylinder end cover at the top of it's travel though.
I have got a set of original castings for Victoria myself but the build is on the 'roundtuit' list! Steve Eaton built a coal fired version some years ago which has hauled him around the Chesterfield club track. It needed a bit of help starting off but managed to get around without further assistance.
Marc Horowitz also built a Victoria to my CAD drawings. I asked him to let me know if he found any errors or problems but he didn't mention finding anything wrong (unless he didn't bother to tell me)
Re Rose – I have the original pencil drawings by LBSC which were kindy donated to the 2½" Gauge Association by a gentleman in the USA. They are a work of art and really nice to look at. They show that LBSC was much better at drawing than he made out in his articles. I've heard that he used to send some of his drawings to friends as gifts.
John