My husband and I have an older Clam 2000 that has the flat roof - I feel your pain
. Flipover Clams and Eskimos are really nice. Our Clam has handled 3 seasons, and we haven't destroyed it yet. We plan on upgrading to a Yukon or Voyager when we have the capability of hauling it - so far, the issue lies mostly in* what to haul it in - my Saturn L200 has a copious trunk, but the seats have to go down in the back to be able to accomodate the hut. The sleds go in the sports box and we disassemble the auger and put the blade kit up top and the powerhead in the back in a xxl ziploc bag. Moral of this story - trailer or get a truck! Don't get the Ranger, though - that bench seat is too narrow from front to back and you'll be wondering where you're supposed to sit with actual gear on! The HT Polar Escape Magnum hut at Bass Pro looks promising, though - no hard seats, but an interesting idea - flipover with removable seats. And smokin' deal at about $200!
However, there is a guy we've seen when going for kokes at Elevenmile that has a cool wheeled trolley that he hauls his huge 5600 out on and it's pretty slick. I suspect it might be a deer trolley - cool idea for Elevenmile especially. Whatever he's using has wheels that give him a good deal of clearance and they're mounted completely below the surface of the trolley, so he can just fold up his clam and slide it back on the trolley - think little red wagon without the top - just a flat skid. Also, check on the StrikeMaster website for an awesome product - Ice Anchors
- that you basically have hooked to your hut (they give you grommets that you screw to the hut and then you have ropes that go to the anchors themselves), and then you can use any size auger (6 - 10") to drill about a 6" deep hole, unfurl the spikes on the locks to match the hole, and stuff them in the hole, pull, and the pressure locks the anchors into the hole. Kept us from shooting across the ice at Granby in a 30 mph wind & snow. Check with whom you buy from - ask tons of questions - a good one is "how well does it behave in the wind?" ( We got the locks with Elevenmile in mind.)
Also, one thing you might want to try, if you're sick of pulling your arm out of its socket, I got the idea for this from a guy at Granby - fishing at Dike III is so tough for that nasty hill you have to practically fall down and crawl back up
- he had a long rope attached to a deer drag (that strap thing you use to pull a deer out) that puts all the weight evenly across your chest and shoulders so you don't destroy your arms while hauling a sled, hut, whatever. He was pulling a sled with a flipover Clam Scout (the 1 man one) and was able to get across the ice, and then used the long rope on his rig to leave the sled at the bottom, crawl back up the hill, and then hand over hand his sled and hut back up without killing himself. Very smart idea. So now, that's what I use to haul the sled I pull - the only thing is that it changes your center of gravity a little bit, but it frees up your arms so you can pump your arms if you need too while you walk. Might work great with a wheeled system for your hut.
Good luck, guy. (I work at Bass Pro and Ice Weekend is the 9th and 10th - also, talk to Scott in Fishing - he might have some ideas too.)