Micro sights are long out of print. Does the slide still have the original, rectangular slot for front sight attachment? A front sight that's tall enough to match a Micro rear is going to be quite heavy, and the surface area available for staking-on the front sight is not really enough for a large front sight, and that's why they were often silver-soldered, as well as staked. Most modern front sights are attached with a transverse dovetail, like the rear sight.
If the Micro is set in the standard rear dovetail, I might just get a set of nice, high-visibility fixed sights, rather than cutting on the gun or otherwise trying to accommodate the Micro rear.