It might be worth speaking to Julius at Top Hat, it could well be eligible for the Top Hat series : http://www.tophatracing.co.uk/gb.html
However to avoid bending it you are probably best off with hillclimbs and sprints (no other cars to contact with ) ...
I would love to see it out and about for sure, it is a wonderful bit of kit, and would be great to see it used as nature intended
You taking it to Goodwood revival? I'm sure they will let you park it up in the special car park because the rule for that seems to be "pre-66 or interesting" rather than just pre-66 ... don't think they'll let me take my B310 in though ahhah