To try and list everything we need would be a major task in itself so we'll start with just some of the more important/obvious one's, if you know or think you know where any of these can be obtained from please let us know, thanks.

Main gearbox & rotor head

Tail rotor head

Port undercarriage sponson - now acquired

Rear undercarriage unit

Main rotor blades

Barn door FOD guard - now acquired

Port exhaust fairing

Lower (hinged) pylon fairing

Main gearbox cowling

P1 & P2 Seat harnesses

P1 & P2 Cyclics & Collectives

Any glazing

Main gearbox drip pan

Tailcone driveshaft covers/fairings

No. 4 Driveshaft (tailcone)

Intermediate gearbox (pylon)

Port side aft weapons carrier

Forward rotating beacon

Sponson nav light lenses

Pylon nav light

Winch & frame 

Any photographs or literature of 677 during her service life.

Wiring diagrams for the internal/external lighting.