Yep Rhys, sweet Gun man.The sleeve joint looks to have been done very tidily.Some people don't care for sleeved Guns...but If it can get you into a lovely old Gun like that,a classy shooter with basically new bbls for about 1000usd,what's not to like?
Hope you're still shooting it when your 90 .
Can help with any of your Q's, but you did well I'd say.
cheers
franc