shipping forks back and forth from Canada is not exactly cheap. Best would be to ship you a set of pistons+valving and you take it to a local suspension guy to do the actual install. Some 'generic mechanics' can do it but unless you KNOW the one you have in mind is comfortable with suspension, I wouldn't count on them doing it correctly.
No, I don't do this FT - I'm a software/DevOps engineer in real life. Yes I do have people ship me their forks from all over CONUS but I'm a bit oversubscribed ATM.
Parts only (pistons+shims) would be like $60 (re-using FZ09 pistons - limited quantity) or if you want my custom-made pistons it'd be more like $120. Compare that to K-Tech's kit for $460. But to be fair the K-Tech kit includes cartridge bodies and replacement needles (3) whereas mine does not.
I'm a pseudo-dealer for K-Tech and Nitron and can pass on savings to forum members.