I plan on doing exactly the same, booked in to get some PS4’s for road/damp track and then going to get some cheap wheels with R888Rs (although full slicks are tempting...)I have booked another track day at Lydden Hill on 19th June 2021. It is another sessions day with 6 20 minute sessions.
I am hoping to acquire another set of wheels by June. Does anyone have any sensible semi slick recommendations for 215/45/17 size wheels? I had a quick look at some NS-2Rs or some R888Rs. Hopefully with two sets of wheels I can keep the Michelin PS4s for everyday road sue and wet track use, and use the semi slicks for track days or during the summer months.