I think there is going to be more to it than just basic invisibility. I don’t think Oda is going to go down the route that science can perfectly reproduce a devil fruits abilities. For example, the Pacifista created by Vegapunk (who is hyped as the GOAT scientist) by analyzing Kizaru’s fruit can only replicate its most basic ability (generic laser beam). The Pacifista doesn’t have any of the other abilities like creating light constructs (nevermind turning into light)
Momo is a bit of an outlier but thats because Kaidos fruit itself was copied, not the abilities reproduced through other means.
Regardless, I do think its hard to make a fight involving invisibility to be interesting. Its a bit of a gimmick. Another option I would like is if Blackbeard have the ability to freely transfer fruits over, so Shiryu doesn’t even end up with the Clear Clear fruit.