>>>*Hi!
Well, from that pic of your gasket I would be a bit concerned about the deck surface.
If the two mating surfaces aren't flat and properly finished, no gasket made will hold forever.
We cheat when we clean a block deck, we have this big old surfacing machine...*LOL**... Doing it by hand is a pain.
Once you are sure, bolt her up and go. By the way, letting a trusted professional do the head for you can save a lot of trouble....*EB

*Beats the he** outa me!....*LOL**...