My absolute dream in airsoft is to have my own SL8 replica, but from what I’ve been searching it seems like there’s no good replica like that?

The two manufacturers that come up the most are Ares and Novritsch with their SL8/SL9/SL10 and SSR63 A3 lines respectively. The problem is that while Ares has very good externals, their internals are proprietary dogshit, for lack of a better word, while Nov has godawful and inaccurate externals and average-at-best internals.

Is there really no SL8 airsoft replica that has accurate externals and at least somewhat decent internals? It also seems that SL8 custom builds with a regular G36 replica as the base are also not possible simply because there aren’t any SL8 externals up for sale anywhere.