In the end I fitted OMP 1732 which is listed for the 16v and 16v turbo:
https://www.ompracing.com/en_gb/ma-1732.htmlI had to make the following mods to fit this to the 20VT:
1. RHS wiring loom plastic channel removed. Loom then fits over brace and tie strapped in place.
2. Brake fluid reservoir moved forward on 5mm spacers.
3. LHS fuse/relay mounting bracket moved down. This is necessary on the 16v anyway, according to the instructions that came with the brace.
All looks great. Haven't driven it yet as top engine mount is off await new bushes. Will post some pics.