Hey mate,
last year I re-powered my 130 Etec to a 150 Yammie. I was also looking at the 150 Zuk. Both dealers said “NO” to a trade in.
This was around 3 months after Etec announced they were closing up from memory. It also had over 700 hours and this was a concern for the dealers in regards to re-sell.
I ended up selling it for $4k privately and the Yammie dealer did all the work in regards to taking it off and putting in a crate etc.