Can’t help with but one of your questions…
I have the clamp on pallet forks. They work, but 100% I’d take a dedicated set on quick attach if given the choice. The clamp ones are hard on the bucket. My bucket is permanently bent and I had to weld the scraper edge back on.
They’re prone to shifting. I ended up welding some steel in the bucket where I commonly put them so the set bolts can “nest”. Keeps them in place way better.
They’re waaaaaay out in front of the machine, so capacity and fine movements become problematic.
All in all, better than nothing but I’d prefer a dedicated set of my machine had quick attach.