Since no one else is pitching in, I'll give it a shot. Unfortunately, I'm not all that familiar with the Drahk, so I dunno how much help actually I'll actually be.
Anyway, to start with:
Don't let your Scouts or Raiders anywhere near a pak'ma'ra squadron, especially the Hurr Gunships. Actually, you probably shouldn't get any of your smaller ships within 15" of a Hurr, squadron or not. Fortunately you're fast and maneuverable enough that shouldn't be too hard to manage.
His fighters will almost certainly be a nuisance. Most of them won’t be able to do much beyond crit-fish, especially against ships with GEG 2 and up. Porfatis, Riva, Sky Serpents, and Tzymm are a credible threat up to GEG 3, but they’re all slow and Dodge 4 at best. Except for Scouts, Raiders, and Fast Cruisers, Drahk ships have decent all-around secondaries, so you should at least be able to keep the numbers down. Also, Light Raiders should do pretty well for area-denial, though they’ll have a tough time actually catching any fighters with only 8” range.
I’m afraid that’s about as much as I can come up with at the moment, though that may change in a couple weeks, since I have a few games against the Drahk coming up. It may help those who really know what they’re talking about if you provided your current fleet roster, as well as your opponents.