Wanted: TPI Engine Wiring Harness

I've got a 1991 Pontiac Firebird 305 TBI. I've found great prices throughouth the internet on different parts for the conversion to TPI. Below is a list of the parts that I have and how much they cost...
The only item I am lacking is a wiring harness for the TPI. If any of you have anything, please let me know... I don't want to spend several hundred dollars on this one measly item ( I know it's not really measly since it is the only thing holding me back...) My only other option is to take my TBI harness and convert it over myself. I realize I could've bought the whole kit for $550.00 but I've been accumulating these parts over a good period of time (budget constraints).
Any help would be appreciated.
TIA, Braggs
Items Needed for Conversion of TBI to TPI                      ITEM Purchased From        COST `TPI lower intake    E-bay            $75.00 `Fuel rail                     `8 injectors                 *TPI Plenum        E-bay            $100.00 *Pair of runners                     *Throttle Body             *TPS Sensor             IAC Motor        N/A            Reused MAP Sensor        N/A            Reused Distributor        N/A            Reused Wiring Harness             CTS            N/A            Reused IAT Sensor        Jims Performance    $14.00 Knock Sensor        Jims Performance    $40.00 ECM            E-bay            $49.99 PROM/MEMCAL    Moates            $55.00 Fuel Pump        Checker Auto Parts    $68.00 High Psi Fuel Lines    N/A            Reused Fuel Pump relay        N/A            Reused Air Intake w/ Filter    Self Constructed        $60.00 Misc. (Bolt kit)        Jims Performance    $16.00 Gasket Set        NAPA            $25.00                         $502.99
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I would go to the salvage yard and cut off 8 injector pigtails. Your TBI harness already has most of the wiring you need. If I remember right there is only a couple wires that will have to be moved at the ECM connector when going from TBI to TPI.

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