Reese Dual Cam Head Replacement

I contacted the dealer where I bought the setup as Reese won't stand behind the head because I'm not the original owner. He said I made a sharp turn. That's a load of dog snot. This is after they told me they have heads with P/N 112750 that are thinly cast. I really can't wait and don't trust the head. I am considering upping to the 1500 or 1700 setup as the WDH accounts for weight in the truck bed. If my tongue already weighs 1200, the 1200 bars I have are maxed. Add 300+ in the bed, and the 1500 bars will be maxed. It seems the lowest rating on a bar is half the rating, so a 1700 bar could effectively distribute down to 875 tongue and bed cargo.
If I purchase a new head and trunnions, I'm at about $350. It may be better to just go with the equalizer setup for $500. I hate to throw good money after bad.