i am in this boat now and i actually disagree.
a good condition Kouki S14 with a clean motor swap and smart mods is still worth more than $10k
moreover… from an investment point of view, the Kouki S14 will still be worth $10k+ 2 years from now whereas the Z will lose another $3k-$5k in value.
zenki’s maybe not, but Kouki’s are still hard to get in good shape and a clean SR swap will always be worth a few grand in a clean chassis.