Mostly boats, beach, some street, landscape. 90% B&W - Acros 100, 10% or less Color Ektar 100.These are the only two films I shoot. NO digital. Budget open, but I am a shooter not a collector. The camera will be used not saved in a cabinet.
My go to lens on my Hasselblads are 80MM, 150MM,(portraits) and a superwide camera. Almost all the work that I sell are taken with the 80 (boats) or superwide (landscapes). By far the biggest prices are paid for the superwide pictures that are hand printed, wet prints. This camera will be for fun not to sell pictures.
First thing which came to my mind after info you have given is - no fast 35 needed. Color Skopar 35 2.5 is great for color, but it was driving me nuts with bw prints (primitive contrast). But most of 35 lenses are sharp enough from f5.6, no matter how old they are, as long as optics are clean. Still, IMO, modern lenses might be better choice if you like sharp photography. Modern Zeiss 35 f2, f2.8 going to give it. Personally, I prefer Leica Summarit-M 35 2.5, which is close in price range to Zeiss. I like its rendering on bw, color is great as well and handling.
Honestly, I don't think what adding M6 and 35mm will add to the sales anyway. RF is great for grabbing of the moments, it works for intuitive, spontaneity taken pictures best. While exact framing is somewhat possible, but if you need to have objects aligned in related to each other matter, RF will fail due to the parallax factor.
For example: You have noticed what moon is visible while sky is still blue. You want it to be aligned right above of the boat mast and you want the rest to be framed certain way. If you will use RF/VF for it, the moon is going to be off the mast.
But if you walk on the beach and here is something, you don't even know for sure, but feel it as special and brisk. RF camera with RF lens equipped by focus tab will allow you to capture it instantly as long as you will not bother with in camera meter. Result often comes with crooked horizon, un-perfect exposure and OOF. It will be cherished by MoMA curators and guys like me who don't want even look at sharp images of boats, but proud of their pictures like this:
But RF still might deliver in more traditional department, while having fun. I walked many times by this spot, but one evening it was worth of taking it. It was at these three minutes of sun dropping under horizon. The quality of light specialty on this day and how everything was lit by this light. It took me twenty seconds in total, one frame and f1.5, handheld.