Model year differences -will earlier parts fit?

[motoleo]

Newbie here...I have a 87 Honda Spree that runs well but is missing all the turn signals and needs some cosmetic help. I have a chance to pick-up a nice pre-87 model cheap (with no title) and I'm thinking of swapping over all the body panels and turn signals to my 87.

Will the older panels fit the later 87 scooter? What parts are different other than the plastic panels and dash? Are all the mechanical parts the same on all the Spree model years?

Thanks,
motoleo

[me4get]

87 And up have different turn signals the previous years.