Another thing to remember is that most trailer tires are rated for 65 mph tops. If you never ever drive any faster, not an issue, of course, but why not have the extra margin?
I had good luck with H rated Goodyear ST tires on a heavy 5th wheel but like LT tires on my lighter unit because I feel they have a substantial safety margin for carrying passengers and seem (to me) to hold up better. A seemingly knowledgeable tire guy who ran a fleet of trailers told me that all passenger (LT) tires are required to be able to handle 50% more than their stated load because they haul people, not stuff. He said his company had tested it and found it to be true: LT tires didn't fail where comparable ST tires did when overloaded.
My understanding -and experience- is that ST tires aren't kidding when they say only xx mph and xxxxx lbs max load. Go over either limit and they're done. I'm not advising overloading LT tires, just that there is more of a safety leeway with them than ST tires.
Like everything in life, we all have to decide for ourselves. Whatever tires you choose, just be sure they have good leeway in the weight rating. This is one case where more is better.
I'm glad your wheels are 110 psi. That will save some money. Mine were, I think, 65 psi with D rated Chinese tires so I had to buy wheels too.