Hey, I'm in, it could be fun (or a disaster). I'm not likely to be much help other than to provide a meeting spot, but as mentioned the border's the main issue..
I had the same problem of a ridiculous rake after I added an extra factory main leaf on my 65. I compensated by running a much shorter tire on the rear - has a mild rake unless the trunk is full when it'll now ride level.
It kinda looks to me like someone has added an additional 'main leaf' to the original spring pack. Mine were cut a little straighter than that one, but it is very effective, almost too much so some times.
I really enjoy reading others' projects where they're paying attention as they go and notice these little things. So many folks just 'slap it together' and hope.
Good Yob, man... :thumbsup: