daks-
i just realized i have a refurbed set for sale, see link...my classified here on the forum
https://www.ninjette.org/forums/showthread.php?t=240826
This offers another reasonable, practical alternative....buy them outright, bolt on and ride, NO downtime.
AND you'll be able to keep yours for spares and educational purposes (you can clean them and learn at your leisure)
PM me to go forward.