No problem. Anything to Help.
woo482's rover is a nice and simple add-on that although it doesn't do so much intrinsically, it allows a lot of possibilities.
For example he developed an add-on that can be attached, move no faster than 10km/h while on the ground (and spins the wheels), and carries UMMU support. It doesn't even display the mesh, although completly possible.
What that allows however is a system to move UMMU's around a base quickly (something impossible alone because UMMU gets tired and moves at a top speed of about 5km/h), can be used to explore bases around the solar system. Can be a wonderful, and exciting, addition to Orulex+Meshland. It will notice if you hit the ground too hard (HARP is fun

). And finally Ejection seats (although they are fatal, ha, they only launch you 10m up

). You can also combine it with Cargo Deck/URMS to haul around cargo and other stuff on the ground.
As for vitals while in the spacecraft, I myself wouldn't worry too much. I would probably check vert. speed at ground contact and maybe check dynamic pressure to be no higher than "sea level" on Jupiter. And then move on. If you want you may implement your own Temperature gauging system but it might be overkill. :beach:
I personally find the DockingHUD to be limited but you have the same+more information in the provided HUD. Change display, depending on whether you are grounded or in orbit, to Surface/Orbit mode and select the target vessel. It will give you its orientation from you (pitch, heading), your distance, and your relative speed to it (in three axis). Besides, EVA isn't meant for rendevouz with another spacecraft in a different orbit. For that you use a ship. An EVA has limited fuel and oxygen.
Just play around with both the UMMU and the SDK so you can be familiar with it. It has a help function as part of the data hud.
Again try to contact dbeachy1. Maybe he can tell you what he has found working on the XR-series with UMMU.
I've been going through various websites, SDKs, and add-ons to get you the information in the previous posts. I'm tired :chair: