The UST-5000 was used for the 2200SR3 in 2005. I think you need a trailer rated for your boat. However, many times the only difference is the tires. Check the tires on that trailer. They are probably ST185/80D13. If that trailer has tandem brakes and is the correct size you may be able to switch the tires to ST225/75D15 tires and then have the higher capacity.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."