I don't know if you will easily find someone that would wound you springs at a reasonable price.
Personally, depending on your goals and budget, I would cut down your stock springs if it,s only a street car that you use for drag racing.
If it's for road racing or if you don't want to cut down springs, buy yourself a coil ever conversion kit that can use 2.5" coils. Those coils can be bought for about 75$ can. each for any length or spring rate.
If it's any consolation, my car is sitting even higher than yours at this moment. I can drive almost over anything.
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Michel
My life is crap
http://www.azur.qc.ca/rallye