Steve - Be careful with inside zippers. They can make a mess of paintwork. Not an issue on R3 but it is with rearsets.
Though I am with the skirted goat herder on this one. I wore "proper "MC form" boots on every ride for years and years.
With the exception of some of the offroad ones walking any real distance was a pain.
So I started carrying a set of walking boots on "trips" - ended up after some years wearing good mountaineering and/or hunting boots.
I still have some old MC boots and whilst they are fine for pottering around at home (I'm wearing a pair now) - not for serious walking.
Most "tactical" boots now offer sidezips too. And if you replace the laces with 3mm(1/8") shockcord - footsies bliss!.
Thankfully GoreTex is not often a necessity here. But as Goretex pretty much comes standard on any good walking boot - well..........
PLUS - given your self declared lack of in-seam - a 30mm heel and chunky sole can only be a good thing.
IMO - footwear is really personal though. I still dream of being able to get to Altberg in Yorkshire to have a pair made to measure
Motorcycle Boots - Classic Styling & High Performance Boots by Alt-Berg - They are a LONG way from my mum. There is however a "fitting centre" not that far from mum and sort of close to
@Nat67 in the middle of cider country.
I'd go for the lightweight waterproof Hogg.