Yup done that, had a couple of the first ones FbreLyte did when they released them many years ago
I've done that version a few times, and a last-of-the-line plastic tub TRF211x... but neither are geniune factory driven TRFs. Remember there were three main developments of TRF211'x, all evolutions of the first, and i doubt any of them were 100% identical
The one available from Fibrelyte was around the second TRF211x development, the Dynastorm version. Ive always wanted a geniune Super Astute TRF version, one of the first ones. As in the picture above.
Shells were a driver thing mostly - some used modified Astute shells, aftermarket shells or the Kyoshos dependant on which chassis they were using or whatever design they liked. The second generation TRF211x's used a pre-Dynastorm shell, looks almost the same, just minor differences.