If the tape makes the grip right.... you just need to measure or remove the halves.... and duplicate.
While measuring or tracing hand size often yields acceptable results.... perhaps a foam, think custom orthodics, might be possible.

Grip/Stock making for firearms and bows should be required in all high school programs in order to graduate.
Real hand....y skills for life.

Or
Get an oversized inexpensive set and some tools/sandpaper.
You only live once! My choice as to duplicate the taped grip after measuring.

Or
Scan and CNC?