Also not mine.
2021 FWC Hawk Shell $20,500 Bellingham, WA
https://bellingham.craigslist.org/rvs/d/bellingham-four-wheel-camper-hawk-shell/7659836366.html
Not mine but can vouch for condition and owners...
2021 FWC Raven Shell in Cody, WY $15,000
https://billings.craigslist.org/rvs/d/powell-2021-four-wheel-camper-raven/7657040071.html
Fix that caulking failure. That can allow water to get in... ask me how I know... If you don't see anything obvious with the way your velcro is closed up, I'd almost bet its working it's way into that seam.
If you don't mind dust and water intrusion you'll probably be happy with the M. If those things bug you, you probably want to stay away from topper style campers. Seems to be an issue with all of them since truck tailgates are not meant to be weather tight.
I don’t see why it wouldn’t work. We have been running a Raven on a 6.5’ bed while we wait for our hawk. I have it flush with the end of the bed with a gap up front to avoid the awkward bending over to get through the door like was mentioned above. I’d also wait for a grandby if I were you since...
ATC Bobcat in Ferndale, WA. Not Mine.
https://bellingham.craigslist.org/rvs/d/ferndale-2007-all-terrain-bobcat-pop-up/7495039090.html
2007 ATC Bobcat $7000 Ferndale, WA
Alaskan for sale in Burlington, WA. Not mine.
https://skagit.craigslist.org/rvs/d/burlington-alaskan-camper-truck-camper/7479456466.html
1977 10' Alaskan cabover $ 4,850 Burlington, WA
Couple Fleets in Bellingham, WA. Neither are mine.
2020 FWC Fleet $28,000 Bellingham, WA
https://bellingham.craigslist.org/rvs/d/bellingham-wheel-pop-up-camper/7475518942.html
Tundra & Hawk combo in Seattle. Not mine.
https://seattle.craigslist.org/see/rvs/d/seattle-four-wheel-camper-tundra-pu/7467872423.html
2010 Toyota Tundra with 2013 FWC Hawk $49,950 Seattle, WA
Hawk FD in Seattle. Not mine.
https://seattle.craigslist.org/see/rvs/d/seattle-four-wheel-drive-hawk-camper/7466972675.html
2016 FWC Hawk $26,000 Seattle, WA
Google search produced this... older but should still be very close overall.
https://expeditionportal.com/forum/attachments/hawk-measurements-jpg.386691/
Also this.
Not mine...
Another Grandby Shell in NW WA. Older one this time.
https://bellingham.craigslist.org/rvs/d/bellingham-fourwheel-pop-up/7393255819.html
2000 FWC Grandby shell $5400 Bellingham, WA
Not mine...
Grandby Shell in NW WA
https://bellingham.craigslist.org/rvs/d/clearlake-wheelcamper-shell-model/7392313127.html
2020 FWC Grandby shell $20,000 Sedro Woolley, WA