Not A&P but I'd stick with AN hardware due to known material and corrosion resistance. There's limits on allowed washers and bushings I assume....but...
Not A&P, but From AC 43.13-1B CHG 1 Par 4-94, a. Dented Tubing. (1) Dents are not deeper than 1/10 of tube diameter, do not involve more than 1/4 of...
Buying part of someone's life history can be difficult. I been there since 1974 and do recall that PA-11 in the water and docked next to the storage...
If the load fits under the tie wire X and doesn't cause water drag behind the rear spreader it works. Getting it in there from a dock might be work....