I reckon you could find an entire car with a good LH0 for less then the cost of a reman engine. Then you can at least drive it and put a known quantity in the car
I'm so scared of reman things these days, you might get something good, you might get a even bigger disaster then what you have already.
Well, from where I stand I would probably look for a 3400 LA1 shortblock, plunk the T-code heads & intake down onto it, & install a custom 3400 T-code engine into the car. I personally wouldn't waste my money on just a T code 3.1