Nissan Fairlady 432Z tuning advice/help

Hello, I’ve been playing the Horizon series since FH2 but have finally decided to start making tunes. I want to start with the 432z since it’s my favorite car and I don’t like any of the current tunes I’ve found so far. I’m semi-comfortable with the tuning setup part. My question is more how do you decide what Class and what type of build( AWD handling, RWD power, etc) work best for the car? Also are there certain upgrades to always aim for or are unnecessary? I know for example a lot of tuners do not upgrade tge clutch since it doesn’t have much impact if you play M/C and you can use the PI points for other areas. Or how people use off-road tires for road builds sometimes to keep the PI down. Sorry if this is too basic a topic but figured this is the best spot to ask. Any tips, ideas, or general strategy would be much appreciated to get me started!