Check out Carolina Coach & Marine in Claremont, NC. Bought an RV from them once many years ago, and since then have had work done by their service department several times. Most recently, they installed the Readybrake system on my Ford Fusion so I could tow it behind the Motorhome. They did an awesome job, and this was an install that CW refused to do and said was impossible due to how complicated the Ford Fusion (hybrid) was. Great service department, seem to know what they are doing (although they are not cheap).
Tom Johnson over near the race track (now a Camping World) *USED* to be great, but I'm not sure now. I'm like you, I am very hesitant to have Camping World do any kind of service work. I know several really good, experienced service techs left there when Camping World took over.
Will and Cheryl
2021 Newmar Baystar 3014 on F53 (7.3 V8) Chassis ("Brook")
2018 Jeep Wrangler JK ("Wilbur")