I take it the brake caliper for the 924S is different from the 924?
924/924S/944 all have the same calipers. Did find the the seal kits for the double piston 928 calipers will fit 924/944 single piston calipers so I can at least get those. Also some vintage Peugeot 505's use the same calipers....must have outsourced their calipers from VW. The Peugeot info (as useless as it is interesting) came via my vintage car and motorcycle expert buddy. He has enough vintage used and OEM Kawasaki parts to start his own eBay store. He's like "I might need a new windscreen someday so I should grab this OEM one while I can" sort of restoration guy.