Hi Jeff, welcome to the group.
Very nice looking car when it's together, hopefully it won't be long 'til it's running again.
If you need cam bearings installed there are good machine shops in the area that can do the work. If you're looking for someone to do the full job of putting it back together then, yes, someone like Kip Motors or British Auto Specialists in Haltom City might be better. Lloyd at BAS was using an 848 powered Mk I for his daily driver last I checked.
The A-Series engine itself is pretty simple, the magic with the Mini is getting the transmission sealed to the block and the clutch and drop gear setup. I had a 1275 Cooper S drivetrain that didn't leak a drop of oil... until I melted a piston

Cheers,
Jim, Diana and Jimmy
Almost Oklahoma
1963 Mini Cooper 997... and a few other toys