WTB computer for 89 RC

looking for engine computer 4379899 or possibly 4379923
the "899" supersedes to a reman; R4557391. these are both 89 Truck, 360, TBI, the "899" I guess is "std", 49-state" the '923 is "HD emissions" version. the current Cali-spec computer in the truck comes back as 89, 360,TBI, "HD" emissions I have reason to believe the computer is "bad" (going thru the flow chart) but now that the truck is NOT in Cali (and won't be again) I'd get a 49-state version as long as I gotta change the computer anyway.

"Plan-B" is to remove the TBI entirely and revert to a 4 barrel TQ-based carb conversion.