I'm after something around 115L..The list..
JP Slate, Smik Mongrel, Smik Hipster transformer, Gong Mob (had the 7'6), Starboard HN (had 7'4 and 7'8), Naish Crossover.. Any others?

I want the board to firstly surf well, secondly sup foil surf OK and lastly wingsurf on light wind days. I have another small dedicated wing board for winging.

The HNs I liked on the wave but found paddling them very slow. The Mob was really nice on the wave but the 105L was a bit challenging for me when rough. The 7'11 would be good at 120L. I can't see alot of stuff about the Smik mongrel and the Smik transformer looks like it only comes in larger 8ft + sizes with too much litres. I know nothing about the Slate or Naish surf capabilities. Anyone used them or have suggestions for another board?
Thanks

I am looking for a similar board, as you said I want it to surf well and then I would like it to be reasonably comfortable to windsurf foil on.

The next thing I would be tempted to try is to sup foil on it? But is sup Foiling much of a thing, do many people do it or is it just a gateway to prone Foiling? It also seems that dedicated SUP Foil boards are quite short, so would Foiling a 7'8 feel like a plank?

Probably after surfing and windsurf foiling I wouldn't mind a go at the wingding, again is a 7'8 board a bit of a plank on the wingding?

I know it's difficult for 1 board to do all these things, but would be so handy for trips (when you have limited space and a baby) but the mongrel looks to me the nicest shape for sup surfing, and not bad for a windsurf foil so would like to hear any advice on them or alternatives. I weigh 70kg

That Fanatic looks a nice option.

Tbh, I've gone off the idea mainly due to the weight of the boards. The all in one boards are 1 to 2 kgs more in weight. In sup surf a small chuck around board should be light. Wingsurf, the board really helps if it's light and short. I've ordered a gong inflatable Hipe 5'1 and will buy a used small fun surf sup. More boards in my quiver but more specific to the task and light!!