the winnie drop 170k...still called winnie drop in late 2017 btw..... is our 6th camper. 3 pups and 3 tt's and easily our favorite. no major quality issues. the rear kitchen door is too big and heavy for its own good so be careful with it. I demanded a new one as ours had a bit of a bow in the center. open it carefully. also, build yourself a drain for that sink. buy a drain...funnel...lenght of hose....into a bucket. done.
perma pro delux rpod 18.8 fit our 2018 winnie drop 170k PERFECTLY and is of good quality. if you want detail, Ill copy/paste the actual model number for you later, im on a phone now...but I dont use the cover much. what i did do, however, was get a good quality rv wax, and protect it that way, and then get tire covers.
as far as wd hitches. dont want one. too much work for us little tt people. and man, the tongue load DROPS the truck a good 6 inches!!! but I dont worry about it. im under my max tongue, so i trust the manufacturer in their publication of that weight max.
nrg