The trailer is in very good condition. No rust, water damage, leaks, etc. 
However, I live in a region that gets very humid in the summer. Unfortunately this EU model doesnt come with a ceiling fan or built in aircon. All it comes with is a gas heater which I haven't tested if it works yet. I also haven't tested the battery condition. 
The following upgrades im considering:
- Installing ceiling fan where there's already an air vent. 
- Replace the battery with a newer more efficient battery that can power a portable aircon.
- Install a portable aircon
- Perhaps replace the gas heater with an electric heater. 
                 
                
Comments
Edit to add, congratulations on your purchase. Great deal!
2020 nuCamp T@B 320S * Jeep Wrangler
(47,171 towing miles through the end of 2024)
2013 Toyota Highlander 3.5L V6
2025 Toyota Highlander 2.4L Turbo
2018 T@B 320 CS-S; Alde 3020; 4 cyl 2020 Subaru Outback Onyx XT
Before getting into different modifications. Consider:
- getting a set of square drive screwdrivers and checking every screw you can find to confirm they are tight and functional; inside cabinets, etc and everything on the outside.
- Use a voltmeter to confirm the WFCO Power Center Convertor {cabin 12V source when on RV Park shore power & the built-in battery charger} When on shore power the 12V outlets (battery terminals) should have over 13,2V if the convertor is functional.
- With known good Power Center Convertor check all cabin 12V outlets and all cabin 120VAC outlets.
- Trace Battery Positive Terminal Wire; does it have and in-line fuse or a fuse box/link thing bolted to the trailer? Did an earlier owner install a 12VDC Battery disconnect switch {might have been a factory option in 2014}.
- Have or DIY; brake inspection and wheel bearing grease replacement.
- Check Tire Datecode . . . if over seven** years consider replacement
** tire sellers recommend five years
Have battery tested by local auto supply store. If bad or very weak a standard lead acid (cheapest), for AGM (a bit more $) might be fine depending on your planned trailer usage before stepping up to a pricey Li-ion.
While your Mods List looks fine also consider:
- A portable 12V fan until you are ready/sure/able to do a power roof fan.
- A portable (small) ceramic electric space heater. A very small one will fully over heat
a TAB {assuming you have shore power}
Finally, research, read, learn before doing any mods . . . what do you need based on your camping style and budget not what a sales person or even us 'owners' on the forum suggest you need.
TV: '25 Canyon AT4
Adventures: 57 Nights: 399 Towing Miles 49,190
I'm afraid it might be more complicated since I own an original german-made Knaus Tabbert T@B 2014 320. These tabs were made for the European market with more solid builds / higher quality materials, but less features than the US NuCamp versions. One of the features that is missing is the absence of a ceiling fan. So I'm not sure how to get a cable up there without it looking terrible.
Wow
Are you in N.A. or the EU?
If Europe the electrical systems will be different but similar to the WFCO Power Center, etc N.A. built rigs use.
If in N.A. was the trailer modified before you purchased for N.A. usage?
TV: '25 Canyon AT4
Adventures: 57 Nights: 399 Towing Miles 49,190