I installed the TRC 50 amp Surge Guard 40240 and couldn't be happier. I really like the wall mounted digital status panel...simple display with integrated bypass...no cryptic codes.
Working with the 6/4 wiring was a bit tough. If I had mine to do over, I'd probably re-wire my entire 50 amp supply with the more flexible 6/4 rubber coated cable from Home Depot. It's got more strands and is much easier to bend/route.
Here are some pics...also more info in the mods forum.
Located power disconnect in the cargo hold. The power converter was relocated onto the wall. Not many options with the stiff 6/4 wiring.
Digital display panel flush mounted into the wall beneath the control center. The display is backlit and includes a light sensor to turn the backlight on/off.
Finished install beneath the control center.