STR dude, as a ex-driver of Wira Aeroback SE, and as a user of multiple different suspension setups, I can tell you one thing is you won't want an overly stiff suspension. I've tried :
1. 8k front 6k rear Hi/lo adjustable suspension. Corner like you're on rails but like what vr2turbo said, only good on track. On normal roads if there's any uneven surface in the corner the car will skip and under or over steer. Very scary. Also, driving slow will be very interesting if you have a female friend with big boobs.
2. 6k front 4k rear hi/lo adjustable suspension is neither here nor there. It's stiff with some minor body roll but it's not comfortable or good enough for hard cornering. Don't recommend this.
3. hi/lo/soft/hard suspension - 8k front 4k rear. Perfect combination if you set the dampers right. Last time I had the BC Racing 30 click soft/hard suspension and it was set to 12 clicks front and 10 clicks rear for comfort setting and 28 clicks front and 22 clicks rear for track use. Very very good setup. Most expensive 'budget' setup.
The last suggestion I have for you is probably (imho) the best. Get decent absorbers like the Monroe Reflex or just stick with stock Kayaba absorbers. Change to new Wira SE springs (make sure the absorbers are Wira SE absorbers too, they are not the same as 1.6 or 1.8 absorbers and 1.5 uses a small spring seat, so doesn't fit the Wira SE springs). The Wira SE front springs are very thick and slightly lowered height springs similar to the Wira 1.6/1.8 ones, except it's harder. The rear springs are the same as all other Wiras. Then invest in a GSR 22mm front anti roll bar then get the UltraRacing 19mm rear antiroll bar with Wira 1.6/1.8 rear lower arms. Don't weld supporting bars to your 1.5 arms cuz they'll snap.
The stock absorbers + Wira SE springs should be about RM800 thereabouts.
The GSR 22mm front ARB should be about RM250 halfcut
The UR 19mm rear ARB should be about RM400+
If you still have budget, use Superpro bushing throughout the entire car or at least change the arm bushes, ARB bushes and steering bush to PU.
With this setup you'll have comfort and still be able to corner like a god. To properly corner without sacrifice on comfort, you'll bound to have some bodyroll but slight bodyroll is a good thing, it gives you more feel and lets you know when the tyres are about to give up and at the same time put less stress on the tyres. Too stiff suspension will rely very heavily on good grippy tyres.
Lastly if your budget is sky high, Koni FSB + Eibach Prokit springs. The combination is seriously the best of both worlds. Koni has this twin chamber thing and uses only one chamber during normal driving. But once it's under stress (like heavy load during cornering) the 2nd chamber opens up stiffening the absorber. Meaning it's only hard when you need it to be. Eibach Prokit will lower your car nicely and still be relatively comfortable.
Or if you are insane and want to spend shit loads of money (more than the cost of your car) then research the Bose suspension. Flat cornering and comfort all using very high tech gizmo wizardry.