Picked up a few supplies today from storage... a big sheet of coroplast (had saved it from the last election) and a plastic water heater drain pan... I'd used one of those drain pans as a rear wheel skirt on my Honda VX with decent looking results... might be *just* big enough to fit the wheel arch of the Jetta too. Will pick up some more supplies tomorrow.
Played around with Google Earth some more. Plotted two significantly different routes... one across the center of the US and one going across a bit more southerly. The elevation profiles:
Central (same as posted before):
Southerly:
Initial glance makes the southerly route look better (max altitude is 7340ft on this route while the other route has a max altitude of 8520ft). But then there are other details that seem to favor the central route (26,675ft of climbing on the central route vs 28,366ft of climbing on the southerly route; 1931mi for central vs 2159mi for southerly... worth at least 3 hours assuming the same avg speed on each route). Argh! Too much information!!