I am heading to Fresno, CA to pick up a new-to-me Reflection 307MKS. I have a 2017 F-350 4x4 with 1+ tires, and it is rather high in the rear. I will be using an Anderson 3220. I called Andersen, and they recommended the 3217 raised hitch, despite the fact that their website says, "Do not use on 2019 and older truck models." They said the 3220 should work in the highest setting, but recommended the 3217. Just in case I have clearance issues, is there anyone you would recommend for trailer suspension mods in the Fresno area, just in case I need to add the 2" lift to the RV?