Yes mate the main mounting holes on the caliper are elongated to allow side to side adjustment of its position on the fork.
Easiest way to do it is loosen the bolts slightly, squeeze the brake lever to centralize it on the rotor, then while still holding the brake nip up the bolts again. (EDIT: maybe best to centralize it by eye then adjust your pads accordingly. The method above is for hydraulic brakes)
Didn't get chance to look at the brakes again, youngest's birthday + work!
But I did get a couple of cheeky purchases.
Ashima 160mm rotor:
Kona branded black seat post, I don't car that it's heavier than the kalloy, some things have to be done:
And the Kula Gold 18" frame really is a beautiful colour:
Bit of chain suck damage to the stay but generally pretty good. I believe it's a 2011 and it looked pretty well specd up
OK i'm all weighed up, ive not included an random bolts and cables and grips, so the weight will be a bit on the light side, still lots of room for improvements.
Affordable changes are probably frame, saddle, seatpost. a nice wheelset would be great but can be pricey, especially as I'd like to keep a bit old school and run rim brakes and tubes, and I've guessed on the spokes/nips weight based on the full wheel weight less the hubs and rims (from google).
All this comes in at 9.835kg, weighed on kitchen scales, not digital!
I can probably shave around 1.5kg by changing to an ally frame, a charge saddle (£30), some wellgo mg1 pedals (£40ish?).
Looked like a zero stack (ZS) to me and then I followed your link to the 2011 specs. Kona describe is as internal / zero stack. There's a good chance it's ZS44, which would be the best outcome.
If so, you need a Hope Top 2 (HSC2_) which is available in all their colours. If both top and bottom is ZS44 then you can use a 1-1/8" Zero stack bottom cup too, Hope Bottom B (HSCB_), to get the bearing away inside the frame.... Or, it opens up the option for a tapered fork. If your frame will take one, if it's 44mm, then I don't see why not(?). Then get a hope HSCH_.
To be sure you'll need to knock cups out and measure with a caliper. Should be 44mm diameter.