The Right Stuff Detailing kits are pretty decent for a cruiser and won't break the bank.
A word of caution, if you need use of a parking brake, opt for the rear kits with the integrated parking brake drum like that used on Ford Explorers. The GM metric calipers with integrated parking brake are notorious for causing a low squishy pedal because they're finicky and hard to get adjusted properly. If you don't need a parking brake, go with a non-parking brake kit to save some coin.
https://www.getdiscbrakes.com/