Creating prepared pianos -help a bruv out

[sleep1979]

so i have bought a couple of Nnxt pianos from detunized that are a bit different , nice upright soft piano , and a nice piano which has the noise of traffic which is different but useful.
also i have id8 pianos and i'm happy with these four to do some projects with.

but this is the thing, i wanna add -some prepared type piano sounds on top ..
i know i could get the prepared piano refills from zombie fights shark or detunized ..
but i have two problems i have reason intro - so a lot of the combinators may not work
and two i dont have want to spend that much money if any
so the question
is there any nnxt paches i could add in a combinator of sf2 files that anyone has come across ? like prepared type sounds that i could add over the pianos i already have cheers peeps