Barefoot that measurement for me is 30.5 (I've measured it many times.) With shoes, it's 31". I'll ask both (one is is on vacation) the other is the maker and they list 30.5 as standover height)
Have the sellers measure standover height. As long as it's less than the measurement you just took, you should be fine.
Yep... I don't understand any fo it either. Let me see if I can link what I was sent.