I too am gearing up and trying to come up with a bag/pad for CO archery. I'm looking at truck camping but I'm prepared to pack in 2-3 miles to save a couple hours of walking each day. I've been watching around for a month or two and found a North Face Bigfoot XL from the 80s. -5F rating, and only used about 10 nights. I did a web search and found a few very favorable reviews and no bad ones. It was a $150 bag in the 80s. I paid $25 and it looks like brand new. Craigslist.
It's a little heavy for packing and probably better suited to the truck but I am 6'5' and 280, so proportionally, not terrible. I won't be walking around with camp on my back every day so for 3 miles in and 3 out I can deal it if I pack in for a few nights. Now I'm off to a pad.