what to do ?

I would eBay it but not as a kit sell them individually. No one is going to want to buy a stock standard full kit.

Unless he's desperate for the cash or needs the room, I'd suggest keeping the gear.

If one day he updates, it might be worth keeping his aftermarket stuff and selling the vehicle as a stocky. Then fitting the gear to his new vehicle,

More often than not the extra $$$$ you spend on suspension gear does not increase resale value by the same amount, and in some cases might work against you, especially if someone is after a Toorak Tractor that's never seen dirt.

Fab.

When having my new Torsion bar fitted I noticed that the skip bin out side of the Suspennsion shop was full of OME shocks, springs and coils they had never been used. I said it was a waste and a shame that they couldnt be used. The shop owner said who would by it when you could purchase a item that specificaly met your requiments as that is why they were changing in the first place. In short good for a spare.

Regards Craig