To me neither of those trailers look any good for a SC 16.
If it were me, I'd fix up and sell both trailers and buy a good, low slung, roller trailer from "name" manufacturer. Here in MN they are very common, not sure about where you are. Dan
Not worth the cost. The donor trailer is worth about $100 in its current shape, on a good day! And the KF trailer would go for maybe $250 or so. A “good” used trailer to fit the KF would go for $800 or more around here. But ya did get me thinking and researching about it! :nod:
I see about the same work being done to both trailers. Both will need painting, new bunks for both and maybe side bunks, new fenders for both or fender repair. The High Roller may require more painting, but no welding a fab work needs to be done to it. You and the boy can do all of the work on the High Roller without waiting/relying on someone else to weld/fab. Plus I feel the High Roller is the stronger trailer, it has way more frame work, The other trailer doesn't have any hardly frame work at all. If you look on Craiglsist The High Roller type trailers have a high resale value. Just my opinion and how I look at it.
The Hi-Roller donor trailer is shot and not worth fixing. More pix below to explain. I’ll have my buddy cut it up and use the straight side rails to build the extension for the KF trailer. He’ll get whatever is left of the donor trailer as his payment. And maybe a couple pizzas! He can then turn that steel stock into quite a bit more in value with some of his other projects. He always has something going on.
Okay, we took pix of the donor trailer last week and after reviewing them closely this morning, I went out and took a harder look at that trailer. As a result of that inspection, I decided that I won’t be using the donor trailer for the KF. It’s just too weak!
I sat (and stood! :nono: ) on the trailer and it flexed under my weight. While I’m definitely heavy, I don’t weigh nearly as much as a loaded KF sitting there! I did the same thing on the KF trailer and it didn’t budge. I don't need the trailer acting like a suspension component, flexing all over while I'm driving down the road, so I'll go with the stronger unit.
And I also saw that in addition to all the rust and rehab problems, that ALL THREE of the main cross members are twisted!

I checked for impact marks and there were none, so the trailer hadn’t hit anything. Plus, it was only the cross members which were bent. The main longitudinal members were fine. The only thing that I can think of which could cause such damage would be if somebody drove the boat around a lake with the trailer still attached! Maybe like this guy?? :lol:
In addition, I measured the gauge thickness of the donor trailer rails.
Main side rail thickness 0.375
Cross rail thickness 0.20
Step thickness 0.11
Light duty!
Anyway, here are some more pix.
