OK, I'll bite!
With the GA, you're getting into a light planing boat that goes up and over waves rather than bashing through them, gets unusually good fuel mileage for this type of boat at this size, is stable at rest due to the chine flats and relatively shallow deadrise, and can be made to do minimalist camping very well. This boat can do hull speed around 5-6 knots and totally sip fuel, or go 28 knots getting somewhere around 2.6 nmpg or more depending on how much stuff you put on it and how you power it. It makes an exceptional fishing boat - I use mine for prawning, fishing, and crabbing, as well as camping and as a platform for backcountry ski adventures in Alaska. Others have outfitted them for serious offshore fishing on both coasts. It's also super flexible since you're building it yourself, you can tweak how the cabin looks to your liking, and Brian, the designer, is active here and is very willing to help people tweak their designs and still stay within the design parameters of the boat. I think it would be a good match. It's a big project, with a LOT of learning along the way. It will be a tight fit in your shop. Realize that the anchor roller usually sticks out several inches and you certainly won't get an outboard on it while in the shop, but you can still work it out....happy planning and scheming!