First, buy some stick-on level gages. These are cheap, and readily available. One of the best purchases/$ I've made. Next, I bought an adjustable drop hitch. Tow, adj. tow, adj. till' you've got it right; then buy a solid hitch of the right hight. For me that involved new leaf springs in the TV, new
axle, lift, and larger wheels on the trailer, before I got it all sorted out! That adj. hitch is now spare parts for other trailers and vehicles in the family.