Enjoyed the last couple of pages of this thread.
I noticed I asked about your xmember a few pages ago, I've since done mine and would recommend the extra bracing you were looking into doing (up the bottom of the chassis legs). Ideal time would have been when adding the strengthening plate to the inside of the legs). The OE one has bracing there don't forget.
I like your pedal cylinder assembly, do you plan to reverse the 'throw' of the clutch pedal since the current cable is pulled and attached at the top? Just a clevis half way down the clutch pedal below the pivot (although may be tricky to get the right clutch travel)?