Maybe this 3D model I made in my CAD engine. IMO this is the closes thing it may actually might look like as modern 3D model in 2026. Its all based on the 3-point view of the given sketch. Its using CJ805, logically it is using those powerplant given Convair's very much CV-990 powerplants used them.
I do wonder if in alternate future exists, they may use JT8D series like 737-200 series, or even wild enough, down into 737 Classic-NG path or even toe-to-toe with a320 if it had survived into year 1990s. Its a wild idea to think of actually.
Its fun to CAD this long gone and forgotten jet.