Firebrand does offer just the shell. But at that cost you might as well find one that’s a few years old that’s complete. But like said before most places will built to your specs. I seriously considered a firebrand because of their layouts, but I’ve read some stuff about the aluminum base welds cracking under the stress of towing on ice. This is something I’ve been waiting to ask the sales reps. But until I’m 100% committed to buying a shack I’ve been window shopping on different features of all the brands.