A few things that I am some what sure on.
Look at popupportal.com for manuals for the rockwood.
popupportal manualsThe mfg of the individual appliance vary from yr to yr and maker so specific info is hard to give with knowing that. You may be able to contact Rockwood with your VIN requesting the mfg of each item so that you can research farther for manuals.
With your unit being a 2001 the running of appliances should be pretty straight forward. Once the gas tank opened on the tongue and power supplied to the camper you may only need to adjust the thermostat to get the furnace to start. The stove should also be straight forward. The lights will require a safety switch to be pressed which is either swing up galley or near the lift post. The fridge will most likely have controls on the outside behind a panel. Don't use more than one power source at a time. It will take upto a day to cool down so don't expect instant temp change once it is on.
There is no reason to seal the underside of the floor as it was treated by the wood mfg and if will usually outlast the remaining camper. Most rot comes from the roof or water system leaking keeping the inside wet. I have a camper turned trailer that is 40+ yrs old and the floor is solid except where wet yard waste sat in the corner for a extended period.
The A/C are usually a sealed system and don't have the option to be charged.
I believe the screen would require complete section replacement as they are sewn in. You may be able to contact
Bear Creak Canvas or another canvas replacement company. I found a screen patch tape and intalled it over a hole from when DW put a pole through it. Been on it for yrs with no problems except the fact I get to inform DW of her mistake when someone mentions it.
The run time of the components without hook ups is dependent on the variables of the user. Depending on how the usage of the furnace and stove a tank of LP can last 1 night or months. Battery is the same way and is also dependent on the condition and size.
Without hookup only 12 volt items work, not the 110 outlets or A/C so don't expect to run a microwave even with a inverter for very long on a battery. The fridge should only be run on 12v during travel and short periods of time. After a number of hours and it will deplete a battery, including a TV battery, don't ask how I know this.
There are roof racks that can be added to the top but remember you are extremely limited to the amount. Usually 300 lbs which the A/C and Awning will use approx 1/3.
