I take it you are not mechanically inclined .
I would think a dealer would do that , specially if it meant a sale .
If you're looking at new from the factory , you could order a custom seat location .
How much more room do you need ?
I'm about 6' w/ 32.5" inseam and I have way more room than I need . Our rig has a 6 way seat . I can adjust it so I can't comfortably touch the pedals or so I'm totally cramped to the point of making any driving a very foolish move .
You might think about buying which ever one you like best and making it fit you . Possibly moving the seat mount back a bit ...
We had the same happen . I simply cleaned and tightened the contacts for the eyebrow and everything was as it should be .
It's still doing fine after a couple of years of daily abuse .
You are right . I did miss that 'no power' point . Sorry for my assumption .
Now that I think of it , we have made coffee with it , using only our propane stove . Maybe that counts ?
Well yeah , more than likely. The PO could have had a bunch of different email addresses . Or , maybe the one linked to that account was with a long since defunct service .
Most likely the overall condition of this countries water supply .
Use to be the creeks were fairly clean . Now they could probably be used for acid washing .
This might help :
I know it's likely not exactly what you had in mind , but it definitely speeds the process .
That Is one of the better ones , but they came in lesser qualities also .
https://www.amazon.com/DEWALT-DW059K-2-18-Volt-2-inch-Cordless/dp/B0001LQLE2
That might do a good job on the tank , but , the hose from the spigot needs doing , as well as the plumbing from the hose to the tank , etc ...
Nothing is as it seems .
I do the same , except I don't bother with any measuring cup . Straight from the bottle into the hose . A little too much is better than not enough .
If too much it just takes a bit longer the 'rinse' the system .