that's at least $600 too expensive for my liking...
The labour to put it in is stuff all, so dont be too concerned about getting warranty on that.
You will need a mechanical speedo drive from an ae92 or AW11 E series gearbox for your speedo to work. You will also need an ae92 GTZ rear gearbox mount or a modified C series rear mount for it to bolt in cleanly.
Fitting by a shop will range anywhere from $1K-4K depending on what parts they change and if they know what they're doing or not.
You may also need a tacho converter unless you're good with electronics, as the GTi tacho wont work with the GZE.
I wouldn't install the motor without putting a new timing belt, waterpump, seals etc through the motor, I'd also check the clutch as a bare minimum as it's a complete pain in the neck to do once the engines in the car.