Bought a travel trailer in march and have had issu...

Bought a travel trailer in march and have had issues ever since.. The unit was never PDI. (Pre delivery Inspection) and was admitted by one of their techs and management that it slipped through. Was full of anti freeze in the water lines. Missing drain stops, missing T.V., empty propane tanks. Left brake light was on the floor Which they glued on instead of replacing it.. Water heater circuit was fried and didn't work. Also had a gas leak since day 1.. The black and gray water have also had false readings since they first showed us the unit. They replaced the indicator lights and it still shows full even when its completely empty. Again since day 1!!!! It showed the black and grey was full!!! And yet they didnt fix it.. I am a full time RVer and had to take it up twice and drive it up there just for it to sit there and not get the issues properly fixed. Made an appointment to drop it off a month ago so they can fix these issues while I was out of the state for a week. The only thing they fixed was replacing the porch light.. I still have the glued on tail light. My black/grey water shows full, coalking is still seeping out of the door AND now I have no gas getting to my stove or BBQ and both tanks are full AND THEY HIT SOMETHING..
Yes I know this was a 2018 used unit but when you charge someone $30k that bought every Damn insurance you sold us you think you would actually do the right thing and fix these things..