If I could get the owner down to like....... 10K would that be worth it?
Not to me. Let's say you get it for $10K, but then over the next 2-3 years, it costs you $15K-20K for a new battery, and $6-8K for a new drive unit, and then maybe $5K in air suspension work, and $2-4K in A/C work, and then a bunch of other miscellaneous common things like door handles and infotainment systems issues, battery heater, rear frame breaking, etc for another $1K-10K, you have to ask yourself if it's worth $50K+ for a beat up, not that amazing car to begin with?
And don't be fooled into judging battery life based on miles or cycles or degradation. The real danger is the battery being done from age. Every single Lithium battery made today for any purpose is a ticking timebomb. It's just the way the chemistry works. Extremely well cared for batteries of this type are expected to last 10 years regardless of use, and many will live longer, but most not that much longer, so do you feel lucky?
And don't be fooled by the concept of 3rd parties making battery and drive unit repairs cheap. They aren't.