Thank you everybody for your prompt responses! When'me lad' picked it up, it went aground on a minor bump in the road and had to be lifted off by six big firefighters from a neighbouring station. On examination, the ground clearance was about 2". We gradually increased it to around 4, but it still grinds on speed bumps. It reminds me of a worm-infested dog! Even at the danger of huge holes beneath the arches, it seems that another inch is in order. Should I try Mr Bell's wedges as well? This solves the Christmas gift dilemma.
Apart than needing to remove my left leg when cruising, it's a fantastic drive. It reminds me of the Ford-powered Morgan I had in my childhood, which I thought was the best thing ever but was really a technical nightmare! However, if I push my right buttock to the starboard side, I can just fit my port knee between the wheel and the dash support! OK, till we need to shift direction!