Sam Strano has a sale on Koni shocks right now so you might as well get them at the same time and save yourself the hassle. I have about the same combo(see sig) that I did at seperate times and I wish I had done them all at once.
Secondly, the GT500 upper strut mounts, while they work great, do not offer any adjustment. Either get some caster/camber mounts(Strano has these as well), or camber bolts. Just an FYI, I literally just got my alignment done 5 minutes ago and the camber and caster were both within spec. Front toe was out 0.5 degrees though.