You will see, when you pull the heads, there is a 0.9mm step from the deck to the squish band. You will also see that the piston crown edge sits below the top of the barrel. If you want to make the squish 'nice', I am guessing you are aiming for 0.75mm, you will need to get the barrel as low as possible to align the edge of the piston crown with the top of the barrel. More often than not this would need you to ditch the base gaskets (and this may result in leaks further down the line), however Cometic will sell you 0.25mm and 0.5mm thick base gaskets. Next, you will want to machine the deck to the start of the squish band (approx 0.9mm) then you will want to use a 0.75mm Cometic head gasket...
However, the squish band will still not match the piston crown and the 'nice' squish clearance will only occur close to the cylinder bore, so your work is pretty much wasted...
I have actually done the same, only because I had the engine in bits and I saw an injustice, but I ended up with an engine that pinked which led me to tinker with the ignition timing to get rid of it...
But... I'm with Maz on this, just refresh the heads without trying to do anything fancy. The bottom line is that if you aren't going to do the job properly (recut the squish band), don't bother. Use your time and money on something more beneficial, maybe on the missus
...