I would counter with Demko, DeBrincat and Makar for Giroux and Timmons.
This is getting closer. Just being honest, but by the time your teams is in a better stage of contention, Zadina will be trending up, Chychrun could be a 35-38 point D with 10 or 12 goals a year, and Giroux will be heading downward. That said, I would look for another youngish nugget that is a tad more "proven" in the mix.
Eric is right. You need to expand on the offers to get what you want, or create your own offers completely. Giroux is your only big trade chip, so you can't take a bath on this.