RV Repair: Starting restoration 1984 16 Shasta, propane equipment, lp heat

Question
Hello Norman,

I am about to embark on restoring a 1984 16' Shasta Travel Trailer.  I already replaced the electrical connection to my vehicle.  and replaced a few outside lights.  I haven't attempted to test check the LP, Heat, or plumbing.  I am a Licensed Merchant Marine Engineer by trade and am experienced in all areas of HVAC, electrical and mechanical 'know how'.  I would just like to ask your advice on a good way to attack the next phase of testing the remaining equipment and some general do's and don'ts.  Also, I will be attempting to work on the exterior and replacing access panels where necessary.  Could you give me advice on paint or other tips for the exterior along with some good sources for finding replacement panels and vents?  Any advice would be appreciated.  I am looking forward to getting on the road this year.

Many thanks,
Chris DeFonce
New Jersey

Answer
The heater and propane equipment are the most delicate parts. I would use a small compressor for this job, disconnect all appliances and the furnace that use propane and put an end cap on them then you can check for bleed off and not have to worry about damaging your appliances or the gas. Once you are sure there are no leaks clean the furnace and appliances then hook them back up and check for leaks once again. Test each item one at a time. If you have problems with the furnace or other items after this you can re-post with the info on those items and I can send you some steps on troubleshooting for them.
For paint I always advise staying with a paint for the application, if you have fiberglass make sure the paint is specifically for that material. It doesn't have to be expensive. Most of the art in painting is the preparation. Make sure you prepare the panels for the paint by cleaning and sanding the areas first. It is best to do this just before you paint, this way no buildup accumulates.
There are tons of manufacturers that supply the panels for use on RV's and other applications. Search on Google for fiberglass or plastic panels.