I thought I'd respond to this part:
What would you do to seek out a partner who has compatible values?
Figure out who you are and what you want, then find either:
1) a place where compatible people tend to congregate (e.g. place of worship if religious, volunteer organization if charitably-inclined, financial classes or communities if you're hoping for a fellow-investor),
or
2) a venue where you can be matched with many prospective mates, so you can screen with (polite and appropriate) questions (or descriptions of what you're looking for.)
I did #2 and found DH by Internet dating. (Acknowledge that I got very, very, very lucky in this regard; the Internet dating pool is a big place, and there's every chance that the person you're looking for isn't looking for someone like you.)
In hindsight, a few things that were good signs for compatibility:
- a lot in common with our family backgrounds (both sets of parents very frugal, cautious, and responsible, which rubbed off on us);
- non-flashy (nothing we wore, owned, nor our lifestyles screamed "latest!", "designer!", "for the rich!");
- financially self-sufficient with a tendency to save;
- responsible and hard-working regarding our jobs;
- a bit older (not everyone needs age to have maturity, but in a population I expect there'd be a positive correlation.)
DH and I have not had a single fight about scarcity of money or how to spend it. Not everything is perfect about how we manage things, but those two points are probably the most common sources of conflict for most couples. We are happy and looking forward to FI, ER, and generally just living a great life together.