I have chose not to continue with a DIY USM I have produced.
I use a modern approach for a manual cleaning method, the practice is quite satisfying, even with the elbow grease required, I have yet to replay a cleaned LP where I though a more clean item could be produced. I am sure on my long term owned LP's I have now been quite successful with purifying the LP's from all the IPA and Detergent residuals from the earlier in life adopted cleaning methods.
I am not against using a USM, but a Single 40Khz Transducer positioned in the base, or one of the side walls of the Machine does not leave me at ease about the effectiveness of the produced cavitation and the quality of the cleaning cycle, hence my own one is buried in a cupboard.
KLAUDIO is not a cheap machine, the design appears to have incorporated Two Transducers on Two Side Walls, so each side of the LP is exposed to a very consistent cavitation produced from Two Transducers, this method seems in my mind optimised, hence my thinking that the OP may benefit wholesomely if informed of this as a option to purchase.