Would there be interest in a dodge TBI setup made for our cars?

that would be my goal, something made from all chrysler parts

Still can't imagine why you'd go to market with a lousy system that's not very common in wrecking yards (Dodge truck/van '88-'91 only) versus a much better system that's common as dirt in wrecking yards (GM). For the low-buck, get-away-from-the-carburetor idea you have in mind, I don't think any special programming would really be needed. Running a stock or near-stock 318? Use a computer and injectors from a GM 305. Running a stock or near-stock 360? Use a computer and injectors from a GM 350. Ten or thirteen cubic inches' difference in piston displacement isn't going to be anywhere near enough to spoil things.