Motorised Transport 35mm Film Scanner

[paul.deitch]

My Nikon CoolScan LS-40 ED is playing up. Well, I've had it from new about 20 years ago so it owes me nothing.
I'm scanning colour negs/uncut slide film/b-w negs.
I need motorised feed because I still have several thousand pics still to scan. I'd go mad with a manual feed!
Any suggestions? Budget is up to 2k.