With the budget of $8,000 to cover everything I would recomend either going with a fully built d16 (sohc vtec) or a stock b16a. Both of those will run your in the neighborhood of $2,000 ..that would leave you with about $3,500 for a nice turbo kit and tuning. Then the rest can be spent on other upgrades...both set-ups are good for about 300whp..
B18c1 works too I supose....it's a bit more but you get more..