Advice on a good quality hitch that will work with my setup.

I suggest the OP read the currently running thread on B&W Companion hitches. They make both a fixed and sliding model.

B&W Hitch Thread

Unless the OP's trailer is an older Keystone Cougar, it will have the radius-ed front cap designed to allow towing with a SB truck and a non-sliding hitch. I towed our Big Horn for 15,000 miles with a SB Ford truck and a non-sliding Companion hitch with no problems getting into any campsites...

I understand the mantra about "better to have..." but an large number of slider owners that post here admit to never using the capability...

You pays your money and you take your chances...Good Luck with whatever you choose...

Regards