If you are shooting normally, and not competition I'd think you could easily double or triple those numbers. Creed case capacity is fairly small when compared to even the 308 size. The 22 Creed is like a 22-250 Ackley or Swift and the 6 Creed is way short of even the standard 243 Winchester so...
If you can find a TC Compass in 6.5 CM, they are known to be shooters. I bought one right after I bought my first centerfire suppressor, and it has been fantastic. The trigger sucks, but it's a tack driver. It was well under $200 after rebates-lol.
Spent plenty of time slogging around in the Brooks range tundra and we always just wore the Danner Fort Lewis boots. They are leather, but no way would I wear hot muck boots. Seems like you would have sweaty feet. I think the way the tundra tussocks are spaced, you would need more ankle support...
My go-to bullet for most 22's is the cheap Remington Golden Bullet HP. Had a few jams early, but has been reliable since. Haven't tried anything else, although may try the CCI segmented.
I won't buy a non-threaded hunting gun, rimfire or centerfire. Latest is a Sig 322 with factory red dot; supressed of course. Only one squirrel and a racoon so far, but the 20 round mag is nice.
You barely have time to shoot and you are going to drop $5k on a long range combo? I'd think you would want something way cheaper than that to see if you like it.
Always wanted a 358 Norma Mag. I shoot a Model 600 in 350 mag and it's fun. Used to load 125's down for a grouse/rabbit load, but haven't done that in a decade or so. Love the 35 versatility and a suppressed 35 lever gun would be a blast.