Question about coil overs

Looking into a coil over conversion kit for my Strange 10way adjustables.
Going to be swapping to a tubular A-arm in the future so going to need these regardless.

I live on a long windy road, and do like the twisties, current springs are Eibach pro-kits and having the struts on a nice stiff setting make things feel great.

I also take it to the track almost once a week, and would like the adjustability of going to a decent weight transfer.
Question is: what spring rate should I go with? I'm guessing 175-200ish is more drag race orientated, but would I still be able to have fun down my road if I went with these springs?

Also was looking at the Strange Coil Over Kit but it doesnt come with springs or say how large the diameter is on them.
And finally, not a clue about what length the spring should be or really what that would do for me.

Sorry bout this, but have to start somewhere.

Yep, those are the ones im talking about.
But just curious as to what spring height, rate, diameter I should go with to keep some decent ability to do some twisties and be able to have some decent weight transfer at the track.
Called Strange directly and they reccommended 175#.
But didnt specify how tall, or the diameter of the spring either.