I would offer them to the buyer of the car as "optional" for 50% of whatever you'd sell them for on the open market, as it will save you the hassle of removal, assuming that they will appreciate them.
I'm with you... I got one of the last sets and my '88 GT was totaled last spring. The LR Koni strut shaft was bent in the process. I pulled off all the NLA parts (Koni's, AADCO bars, TFS lowering springs) and sold off the remaining chassis. I figured I'd either get another '88 GT, or sell everything back into the community. I had to have the front swaybar straightened and just had both bars powdercoated. I sent the rear struts to Truchoice and had the LR rebuilt. The cost was more than a new one! But considering that you can't get a new one, I'd say it was worth it to keep them in service.
I've recently acquired an '88 GT 5-spd T-Top with 23k miles, but I'm not sure if I want to keep this particular one long-term. If I do, I'll swap everything in. If not, I'm back to my previous decision process
'88 Fiero GT 5-spd T-Top - Red/Grey 23k mile BaT purchase