Are we talking Tech2 Clone? If yes, then that seems pretty high to me. If no, then that's pretty great deal!
The Tech2 w/Candi, cables, costing around $300. TIS2000 you can DL from Mooseman's links. You would just need to buy the vga to usb adapter, around $30. Then either a $100 or less XP laptop or run XP on a virtual box in a Win 7/Win 10 laptop.
The correct vga to usb adapter is crucial though. It would need to be the
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS). The drivers in other variants fail to communicate.
I wouldn't pay anymore than $500-$600 for the ENTIRE setup (including the laptop).
Edit: Programming the ECU, BCU, I think most if not all relearns(?), will require the Candi, TIS2000, Tech2, USB to Serial adapter, and Win XP.