So, this is my hauling setup for race weekends. I've modified the hitch-hauler over the winter to trim a little weight, since it's a FWD van and being light in the front makes it feel sketchy, but the bike is quite secure.
Sponsor plug - Matrix makes really nice tie down straps - Carabiner on one end, built-in soft strap on the other. I got the 1.5" ones to use with my Bonnie, but they're overkill even for that.
https://www.matrixracingproducts.com...-tie-down-set/