MZ/MuZ Riders

I’ll start by saying that I absolutely love my Supa 5, the engine characteristics in particular. For a 250 it’s remarkably torquey and quite tractable to ride – very easy to potter around the Devon lanes.
The (big) problem I have is that it’s physically too small for me, I’m 6’4″ and just can’t really get comfortable for any distance.
I really like how the bike looks, it’s currently completely standard apart from a top-box and I really wouldn’t want to change its utilitarian vibe too much.
There must be other riders out there who have the same problem and I’d like to ask for ideas please.
From my perspective, the seat is too low and the (straight) bars make it feel even more cramped. I don’t want to add apehangers or anything too extreme but I really need to do something to improve matters, especially as I get older!
I despatched on an ETZ for a couple of years (did nearly 60k in the first year!) – I know they’re physically a bit bigger but I prefer the looks and riding characteristics of the TS250/1.
I’d really appreciate hearing from other beanpoles who ride a Supa 5.

As far as handlebars go, the TS had 2 versions: the flat style and a higher one (like in the picture). The higher one is also wider.

ride with the tips of my toes on the pegs it's not too bad.

this is bad when you hit a monster bump

falling off hurts

Thanks for the suggestions all, I've slightly raised the seat height which helps a bit. I'd like to try lowering the pegs by about 20mm and moving them towards the rear of the bike by about the same.