I couldn't verify who the manufacturer really is, but these guys seem to be the prime distributor of your pool to dealers:
https://www.swimmingpool.com/swimaboveground/resin/discovery/
Give them a call and ask about salt water chlorination and your pool. They even put information about it on their site, although pictured are in-ground pools.
Besides all the resin parts, the fasteners are stainless, and the walls are zinc treated steel with several coats of epoxy. To me, seems pretty corrosion proof, if no ongoing leakage. Salt water pools are not prone to corroding things, the concentration is so low many can't even taste it. Improper pH can do more and faster damage.
You should also ask other installers. Likely many in your area that will be happy to work on any brand.