The luggage thing is all tied into the road trip and the number of days. Because having a single stop is very different to multiple stops, and so the number of bags and 'convenience' matters.
I use the following:
Morgan luggage: which comprises a large Tourista waterproof case, a badly fitting mohair cover and a zip on boot bag. Although the case has wheels, the size and the cover make it unwieldy, and although it takes most of the luggage, leaving space behind the seats, on multiple stops it's too much trouble. The boot bag however is invaluable and gets used whatever else we take, because it holds all our walking gear, including boots and poles
Overboard waterproof duffel bag: This will take 60+% of the Tourista case. We call it the body bag because when we lift it off the rack, one at each end, that's what it looks like. It fits on the rack using its own integral fasteners, and fits easily with the boot bag. Better than the case for frequent stops.but also unwieldy.
Morgan leather holdall: Must be used with something else, and fits behind the seats. Convenient for regular stops, but limited capacity.
Berhaus duffel bag: Very well made but not waterproof. Will fit on the rack but would need a plastic bin liner in wet weather. This has about 60% capacity of the Overboard bag, but will fit behind the seats with the Morgan leather holdall, leaving just the boot bag on the rack. This is our chosen option for the end of next week, when we will be doing our early season Scottish Highlands tour. Three stops in the first four days means that we need convenience, with fast loading and unloading, especially when its pouring with rain. We also take a suit bag, but keep it quite thin, because that must be doubled over to fit behind the seats, plus a few more squashy bags, most of which stay in the Morgan overnight.
I use a cockpit storm cover when touring. I do have the big one which covers the bonnet , and more of the wings, but you can't fit that to a dirty and wet Morgan, because the wind will abrade the paintwork. The cockpit storm cover works much better on a wet and dirty car, and I can often be found in the bathroom after overnight rain, drying off the storm cover, before rolling it into the bag and placing it in the passenger footwell.
