Iv'e done both of the above.
Firstly I changed the shocks for standard GS shocks, then I bought a Corbin seat. I am now very flat footed and I am considering going back to the original shocks.
I also fitted cast ally wheels which lower the bike by about an inch.
I dont use these any more and have them for sale at £350 with part worn tyres.
If I change back to the original shocks, I am not sure what the standard ones along with the stands will be worth.
Mike.