great conversion, iv had the ratchet problem in the past so i can see that this is very worth while mod, i went through a far few bc boxes within a year on my ERST so i found a 1.4 mk6 escort ib5 box with 80k on it, and its outlived all the bc's put together, hope the hydraulic ib5 conversion goes just as easy for you.
What car are you taking the hydraulic ib5 out of, focus fiesta puma or ka, just wondering because of the ratios?