What type of nose cone? You will have to get the proper flush boot to fit the nose cone you have, that will decide where you go to buy it. Trick Marine is always a good starting point.
Most trim pumps do work at different speeds, you are going to have to use your gauges to match them.
I believe your running a formula but Im not possitive. Id check to see what other guy's are doing with the same boat as yours. I would still only use their input as a reference. You need to feel how the boat reacts to different settings to find your hulls sweet spot. If your going for top end and the hull doesnt have porpoise or chine walk issues, I dont think you will be running any tabs.
Tabs up, drives up, thottles down....hold on