Just finished (almost) our first Sprint RE full standalone harness. We still need to add the fuse block and relays but the harness is otherwise complete. This system is going in an FB that is receiving a TII swap.
The Sprint RE, as shipped, doesn't include the fuses and relays you find in the rest of the Haltech line. The SRE is designed to be used in conjunction with the stock wiring so those parts are omitted from the factory. However, we are adding a fuse block and relay(s) to the system so that it can be used as a full standalone with no supporting factory wiring. We're also looking at offering a kit to retro-fit other SRE/S500 ECUs with the necessary power wiring. Alas, the fuse and relay portion of this harness isn't finished so the relays are not in the pic.