I have a robust and heavy 8 frame manual extractor with a steel drum. I have not used it for several years but it is serviceable. I used it when I started bee keeping. I recall it was hard work, so I ended up using a modern loaned from one my local association. It drives via a clutch which can be engaged or disengaged, however this can slip a bit. I did try to motorise it but the motor I got wasn't powerful enough, however I still have the pulley’s somewhere. The inside of the drum is painted, but I would suggest it had a new coat of suitable paint (bearing in mind it has to contain an edible product). If your still looking PM me. My location is RG8 near Reading. You could have it for £30 cash on collection.