firefighter34

So I bought a LQ4 to put in my 95 M6. I have a LS6 intake and TB but no other parts. In looking into acquiring the long list of parts I still need I started to wonder if it is worth it to buy a complete LS1 with the clutch and all the wiring and ecu I need then sell the long block. (found 1 for $2500) Just to get this thing wired merged and computer is looking like close to 1k with a clutch. Any thoughts? Any ideas of places buy an ECU and harness?
Thanks for the help....