I'd just go with the stock replacement FelPro 8993 gasket. There are folks out there running 20+ psi boost with the $12 head gasket. If it holds up fine in turbocharged applications then its more than enough for a n/a engine.

I'd also reccomend replacing the valve stem seals while the head is off. Although your motor doesn't have the heat issues of the turbo engines, it isn't a bad idea to go ahead and get this out of the way while the head is off. Also pick up one of the steel reinforced rubber valve cover gaskets from your local dealer or an outfit such as Forced4.

The block deck in my 86 SVO was well within specs when I took it to the machinist this past summer. It had been run hot before I bought it, which did warp the head, but the block itself was fine. Usually its just the head that has issues as there is a greater propensity for hot spots forming in the head than in the block.