I got a single axle trailer that was for a 15' boat I'm willing to sell. You'd have to modify it for it to work with 2 kayak since it was for a boat. Has new tires still rolls fine, axle may need grease but I'd sell it for 200....Panama City
I've been debating on selling my trailer. It's aluminum, can hold four PAs easily but set up to hold two with cradles and two other yaks above them. It has new tires and new axle this year. One spare. Has been to Key West and back no issues. Also throw in a locking tool box but I took it off as I didn't use it.
TBH, I don't really know, if I were to guess it's probably steel. I bought a hobie PA14 recently and it came with it. I don't have pics of it on my computer but if you PM me a number or email, I can send them to you. Thanks.