AC Unit Quit Working!

We own a 2006 TM3023 and just returned from a 10 day trip. On the 2nd to last night, the AC quit working. The fan works but when turned on, the compressor trys to start but only for 2-3 seconds and then quits. There's a faint odd smell so I suspect that the compressor is the problem.

My question is ...

Where should I take it for an evaluation?

I am unfamiliar with the RV sales / service businesses in the Port Charlotte / Punta Gorda area so don't know if I want to go that route. There's a Camping World in Ft. Myers that is probably the best option but ...

Will they know TrailManors - how to set them up and put them down, etc.?

For installation, how much weight can be put on a TrailManor roof? Can one stand on it? I would think not but have never had to consider it. And if not, how would an AC unit be replaced?

Can one replace just the compressor in an AC unit? Are there other electronic components in the AC unit that might have been damaged therefore making it better to replace the whole unit as opposed to repairing it?

Thanks in advance for any assistance / opinions!