Worth looking into if you ever get a 2nd bucket, forks, or any other loader attachment. I hate d**kin' around with pin on stuff regularly. Green tractors come with that standard. Just sayin'.....
Skid steer carriers are nice, but expensive and unnecessary IMO. Skid steer buckets/attachments are also much heavier than the usual CUT attachments. That robs lift capacity from your loader. The JD quick attach system is a good example of how to get it done without adding a lot of unnecessary weight or complication. And yes, you can buy just the QA plates separate from the loader or attachment. Just have to figure out if they will pin on to the 'bota loader, and weld the QA plates to your bucket(s).
Also keep in mind with pallet forks, your load center will be at least 24" out from the lower pivot pins on the loader arms, where most advertised lift capacity specs are measured. Do your calculations and have reasonable expectations of what it will lift. Most mid-sized CUT's struggle lifting a 1 ton pallet (ie: Pellets or field stone) more than a few feet and none that I know of will go full-height with that load. Only loader I'm aware of that will take 1 ton (with 24" LC) to full-height is the 400CX on the Deere 4x20 series. (Trying to find current Kubota specs too but it is frustrating, the list everything
except lif capacities.)