It's been a lot of hopeful then dropped back down to the ground on this issue. I have come across some really, really wonderful people on this adventure and dealing with this issue so that's been really...um, reaffirming of the good in people and maybe above all else, the reason I set out on this path to find.
That said, this experience makes the P30 a near no go for me in terms of serviceability. The motor, trans, rimes, tires, rear axle (I'm sure) and things like that aren't tough to address on the road in terms of finding parts however, my rotors, the axle, things like that, even the inner race are all special order, if I weren't in a major area, things would be just that much tougher.
I attempted to get things snugged up today, couldn't find a rotor so I'm using the old one, tossed in a new outer race and things went on fine but with the washer in place, I just can't get enough bite on the thread to make it doable. This means stepping down a size which I'm okay with, actually, I'm sure that's best as I can stop in 350 miles, check things, replace bearings if needed and even if it takes me 3 sets of bearing I can make it. Or make it to the axle in the Los Angeles area. Currently the spindle is 27/32nds with 20 tpi, would this mean going down to 13/16th or 3/4? If 3/4 the Ace Hardware down the road has 3/4 but only in 16 and 10 tip, not sure if that's better or worse or if I should stick with 20 tpi.
Again, thank you for all the thoughts, ideas, insights and so on, they really have pulled me through some tough moments. In terms of safely getting home, San Diego to Tucson doesn't have a backroads option really, I just plan to drive at good times and keep it around 50, it's a straight road so I feel better with 50mph in a straight line, more so than 40 in a twisting downhill. I will take 101 to San Diego however and try to keep it to more backroad type stuff.
Now I just need to find the die I need, have a line on one for tomorrow so wish me luck on that and thanks again!
PS I will post tons of additional details when I get home including places I managed to stealth, tips, tricks I learned, safe area the local law enforcement pointed me to as they don't enforce the codes there, shower spots and so on.