Unfortunately they will not support those springs, I was looking for a post I made a couple years ago on the response I got from Tokico when I asked them the max rates for the HP's but it appears the thread is lost.
Short story = The HP's are a replacement style shock, not a performance one, no matter what Tokico likes to call it.
For example, I blew both Tokico blue rears on my 97 LS when I had OEM Type R springs and they are rated lower than race springs.
Koni yellows should be at the top of your list, and no they arn't cheap. Ground control tells me they are good to about 650 lbs/in, but I can't get an answer out of Koni.
KYB AGX's are debatable, they might work with no track usage just puttering around town, but then why run RACE springs with them right? Usually 400 lbs/in springs max on these shocks.
Last words = Don't cheap out now, buy the right shocks now, or regret it later (even if they don't blow, substandard shocks will have ****ty ride quality)