I'd be very interested as well.
My original Zodiac footpump has 3 indicators which you adjust by sliding the rod to either 1-2-3. Looks like 1 is the highest pressure with 2-3 bleeding out air to minimize pressures. No pressure indicators so I use the "press and feel" approach
Currently I'm also using a 2-way pump we have for a paddleboard. It's licensed by Bodyglove, but likely just a Chinese rebrand. It works good to 15psi.
Would be nice to have a dedicated pump for the SIB, that doesn't break the bank. Everything I've seen out of Italy is $$$.