you have probably over $1,000 worth of work. Deoendson location. They have to make the kit fit, probably fiberglass it, all fiberglass kits come with some minor cracks, so they have to be filled, etc.
Then the spoiler holes have to be welded and then the whole rear side panel has to be repainted. also the hatch. Filling the spoiler holes can cost up to like 800+/- alone. And sometimes body kits are around 700+/- to install. So you are a little over $1,000 with all that probably. Maybe more or less, depending on the location you are at, the shop you choose, and the quality of work you have done.