I haven't looked at all the postings but I did watch the whole video and it really is an interesting RV. In its favor are 1) Price, espicaly for low mileage, 2) really well thought out systems. I have been studying Class B RVs, including Roadtrek, Pleasure Way, Winnabego and Sportsmobile. New versions of these Class B RVs run from $90K to $140K.
Couple downsides, no toilet/shower, sink or stove, killer for DW or I would be on the phone to them and AFAIK the Ram units are a cut below the MB or Ford transit platforms. Less powerful engine, Fiat and probably harder to get serviced. (I had a diesel needed replacement in my Jeep and the cost was remarkable).
If it suits you as a 'toy hauler' configuration (not commenting on the bar
) then I would have a mechanic check out the drive system, maybe a compression check or oil analysis and go for it. If I could talk DW into it I would be on a plane to check it out for myself.