I have a 4/4 sport and have done a few tours. The 4/4 sport rack sits lower on the rear panel and then so does the luggage. I think this helps with rear vision and certainly looks better as it’s not perched up in the air. I have a 9 stud hood and this slots into the interior side screen tray, (we keep the side screens on on long journeys). You can get the hood on in about the same time as an easy up, I use the Williams method. The passenger footwell is deep enough to keep a soft case with a couple of bottles of puncture squirt, and I’ve lately added a compressor, but I have no idea if these would work. I have had to do without a spare all this time, I suppose that’s a matter of choice. But then I don’t carry many other spares as well. Anyone who’s had a puncture will probably tell you it’s a real pain, no doubt about that.
A re-mapped sigma is great fun, and comes into its own on long journeys as it’s so frugal.
So a galvanised-chassis 4/4 sport seems a good bet to me. They’re best in black.