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Understandable, I'm trying to tame my buying anyway so not buying from fairs and the like has been part of that. Something like the project for a few hundred or the type you linked for similar money will speed up the process. It can get expensive keeping in record cleaning fluid though, especially the big ultrasonic baths. The other problem with ultrasonic is drying, I like the vacuum drying the record so it's ready to go back in the sleeve.
If you're hoping to transform a lot of variable condition records into great sounding records I think you might be disappointed by any cleaning method. One thing I've found is cleaning records can make you more sensitive to pressing faults and mechanical damage, so you end up wanting better quality records.