A few initial thoughts.
a) In the knock-out competitions, I think each club (or group of clubs) should only be allowed one entry. This would avoid a repetition of Carrick's ploy last season of entering two teams and deciding which one to default after the draw.
b) If there are more than four teams in a knock-out competition, there should be an elimination to reduce the number to four. Otherwise the final could be the third match played by one or both teams on a single day.
c) I would recommend that the mileage cut-off be set to 40 miles. Otherwise Bude might never get a home match.
a) Maybe unnecessary with a random draw before each round? I'm in favour of letting as many people take part as possible.
b) Yes, of course. I meant to put this in but forgot.
c) Not ideal for Bude, I agree, but I prefer 30. 40 miles is still a lot of night driving, possibly on country roads, with players unlikely to arrive home before midnight.