ProjectJDM_EJ1

What's up i guys, i got a 94 civic ex coupe with a internally stock d16z6. I'm pieceing together a turbo set-up slowly but surely and i have decided on a Tial wastegate. Everyone who sells these sells them with a spring for 7.5 psi but there is a spring for 5.8 psi that costs extra. I don't really wanna buy it and have to buy another spring so could i run 7.5 psi with a good tune on a stock d16? Also decided on Hondata ecu, which one will work best? Thanx for any help ahead of time.