I'd pass on the 460. It's got plenty of grunt but they are very thirsty. No dodges up your way? Nice thing about a dodge truck is you have plenty of parts to swap around. Frankly, the 727s are better
Out of that lot, I think 500 for a 250 wouldn't go amiss. I mean... what can you buy for $500 these days?
If I was where you live, I would have this dodge in my driveway by now
https://seattle.craigslist.org/sno/cto/5513011935.html
I bet 1800 would take it home. Ditch the brush guard and get a grill ad bumper... you're set. Where I live, you wouldn't touch that for 4k without some luck. And it's a 4 speed! In the dodge truck world, that's a desirable option just like on cars. Most convert the full time to part time, but my power wagon is still full time and I'm leaving it that way for the foreseeable future.
