Moza r9 v2 + KS wheel

So I’m currently using the R3 and ES wheel on my rig and I’ve been wanting an upgrade to complete my setup but I’m unsure about how much nm I really need. I race Gt3/4 on iracing most of the time. Someone is selling a brand new unopened r9 v2 and KS wheel for £480 but I’m unsure if I’ll regret it as I had the r12/16 in mind with a GS V2P, what would you go for and why, thanks