I bought a really run down 01 Boxster for less than half what you paid. I've learned some things. About buying a cheap or badly mechanicked Porsche.
One, indy Porsche shops don't like them. They see the fubar suspension or blown strut dampeners, or split boots on the CV joints and immediately tell you that it's not worth fixing and I (you) should call the pick n pull and have it towed off. If it were my car, I'd take it to a alignment/suspension specialist--a shop that specializes in these services. Go first cabin on this, it's important! As someone mentioned you may need to get the frame trued up, too.
Two, there are alternatives to brand new genuine Porsche parts. There are good aftermarket alternatives--The online perveyor that starts with Rock and ends with auto, for example, sells Bilstein struts. You might investigate the suspension section for your year/model car. They also have control arms and steering components. I'd probably do all four corners on the suspension (probably will on mine.)
Three, there are parts cars that can serve as donor vehicles--in your case, I'd probably look into used stock loaded struts. Worst case, rebuild or have them rebuilt with new dampeners. Disclaimer: I live in a very dry warm climate--rubber parts degrade, but rust is unknown here.
First things first, tho. Get the poor little car so it's driveable.