If you plan on using a repro No32 scope, please manage your expectations early.
I've tested a few, including 2 X made by RSM, a No32Mk2 clone and a No32Mk3 clone.
On the Mk2 the reticle bounced around all over the place when turning the elevation turret, didnt track or return to zero . no good.
The Mk3 the elevation drum would slip as you turned the outer turret, meaning your markings and zero were all over the place, so essentially it became zero and hold only. Not much fun with that post reticle .
On both the finish would scratch off with your fingernail.
Regarding scope mount fitting, it's not something you should trust any smith with unless they have successful experience undertaking these conversions.
Brian Dick is a go to gunsmith in the USA for these conversions, a good thread here: