Hi there JonnySpa27,
Well, I suppose it's goodbye to good old Jonnyspa26, it was a wheeze while it lasted.
Congratulations on getting here, you've found the right place, and you seem to have you priorities about right. That is to say, you already seem worried about getting enough beer.
On to your little query:
1. A general admission ticket is 45 Euros, (a Euro is about 0.6 English pounds, or about 1.2 USD, or two camels scrotums in a bazaar in downtown Cairo) and will get you into all the trackside spectator areas around the circuit, as well as the toilets (Smokie, the moderator on this site, is our resident expert on Pissoir Logistics), but not the pits or grandstands. You will be able to get into the grandstands during the qualifying however, and there is pit access for all on Friday 'artnoon.
2. Grandstand prices vary, but are around 95 Euros. Thats a pretty good goat in Istanbul.
3. Travel light, you can buy all you need in nearby supermarkets. Especially beer.
4. Try ordering race tickets now from the ACO, you might get lucky. Alternatively, there will be many tickets, but no livestock, coming up for sale on this site nearer the time. There's always e-bay and the specialist travel agencies; in other words, if the ACO can't help, you'll still get tickets, but maybe at a premium. Or possibly a bargain.
5. Live chickens are a good idea, you don't have to feed them much, and they won't go off in the heat. String 'em out and put them in a sandwich when you need them. The guys next to us had turkeys, but that's not really necessary.
Good luck!!