It really depends on your buyer.

If your buyer is going to try to knock the price down because of a brake swap, electronic ignition or a non-exact OEM voltage regulator or pcv valve, they're
also going to have a huge problem with any kind of subframe connectors.

Is it a car fa little more for a purist or a little more for an enthusiast?
Primarily a show car and gentle cruiser, or primarily one to be driven hard or in any kind of competitive testing (whether drag race, autocross or whatever)?
A gentle cruiser that squawks the tires once in awhile doesn't really need anything.