Newbie with a lot of questions..

I have 11 locks for my hatches, all keyed alike.These looks use all letters of the alphabet and numbers from 1 to 99, So there are 2574 combinations. 

What we did was buy a couple of locks from these people. We got them keyed the same as the door, so now we only use one key to open everything.

What replacement locks are recommended?

Driveway shakedown. Before you go on your first outing get a 30amp to 115V adaptor, plug into an outside outlet if you have to use an extension cord get one as short as possible and with 14 ga minimum wire. You CANNOT run your A/C but your converter, TV, micro and frige can be checked get a plug in voltage display or use a meter to check your voltage supply is not to low. Buy your fresh water hose with pressure reducer valve and hook up to your fresh water inlet check for leaks operate all your faucets and shower leave water on and all faucets ,shower ect. turned off for at least 30 minutes to see if leaks develop anywhere also your toilet and since your just testing and not using you can check your black and grey water storage tank drain valves because you will only be draining clean water. Our new 189 had a water heater leak that did not show up right away at the dealer it is located under your bed so not readily seen. I would turn off the water when your done checking or when left unattended until you feel comfortable with your system. If your tow vehicle is a PU check to see if your tailgate will open all the way or hits the power jack it can be rotated 90deg to gain more room do not forget to turn the switch on the power jack to 'OFF" when done using it there is a built in light that is hard to see when on during the day it has no separate switch so if jack switch is left on and no shore power is connected it will drain your battery down. There are four screws that hold a wood face panel in on the bottom of your side if you remove them and the panel you can see if anything (waterlines, propane lines )are stretched to tight when the slide is retracted in our 189 the hot water line was way to tight and had to be extended. Make sure your bathroom door is closed before retracting your slide in. You will need a way to check the top of your slide on the outside before moving it in. The first thing you do when getting home from the dealer and unhooking is chock those wheels. I would comment on changing out those Chinese made tires but opinions vary on those do some research on there quality control and decide since you have a single axle and not the benefits of a tandem during a mishap.           

If you search my postings, on several occasions I posted a long list of need to have, and want to have items that I collected from reading this forum.  In terms of knowing whether an RPOD is right for you I would strongly recommend you find a place that rents RPODS or equivalent.  Basically if you are coming from tenting or pop ups an RPOD is a move up.  For us we were hotel hoppers transitioning to a travel trailer and an RPOD turned out too small and we had to move up to a 26 foot camper.  Wished we had  rented one first. We loved the POD but needed more space for anything more than a long weekend trip