Chassis for the tt?

Hello together Have a question about threaded suspensions for the tt. Which suspension would you get? H&R, KW or something else…? Do I need to lower the other stabbi? oh yes and what else… I would like to order new rims for the next year n set in size 8×18… which mature (size) would you do on it? I thought of 225/35… or over 40ger better…? Richi