In the meantime, spyderesk diet ideas: if you put a can of fix a flat and an air pump in place of the spare, get forged wheels (should be able to reduce un-sprung weight five pounds per wheel) got lighter seats and bought this you would knock off some weight.
this is 5.5 pounds
https://p10.secure.hostingprod.com/@www.voltphreaks.com/ssl/catalog/product_info.php?cPath=1_5&products_id=81
PS The factory tuned the suspension on the spyder, added HP, lowered it...it wasn't just a wing & decal pontiac job.