Where are you located in the Thunder Basin, if I may ask?
I live on the Cheyenne River Rd. south edge of western 1/4 of area 6.
Area 27 has quite a bit of public land, but it also looks to be limited draw. You'd probably be ok with "special" or preference points though.
Area 7 doesn't have as much public land as 27, but there still is a fair amount. Area 7 has a higher quota and usually has leftover tags.
Area 6 has even less public land, but enough to hunt if your willing to get out on foot. Area 6 usually has leftover tags too.
Hopefully your buddy will let you borrow his RF. I've gotten a few 450 - 500 yd antelope and deer over the years with the 25-06. Love that Caliber!!
7MM Sendaro is also on this site, and he comes out and hunts with me every year. If you're hunting in eastern area 27, maybe we can all get together and have a beer or two?
Good luck in the Draw!!