The bent wood base should be fine on a table. I think it's mostly about getting tension right, since quite a few have set up a 66 for free motion, on frames too. You have to find a cover for the feed dogs, there are at least two or three types availabe. Some have taken out the feed dogs (two screws under the feed dog plate) when they are set up for FMQ more permanently. It's easy to put them back in. Make sure the felt or rubber feet under the base is in good condition, it makes it all more stable and less noisy. I cant' think of anything else at the momoent, I guess it requires a bit of test sewing and fine tuning before you can start.