Thanks to all who replied, I am travelling with a mate on his similarly ancient BM 1000 twin, and we will be staying at a B&B in Onchan. Going up on Saturday 6th, and arriving late, so hope I am functioning for Mad Sunday. Last time I went was in 1979, when the nutters in the outside lane were on Triumph Bonnevilles and Ducatis, with the odd GS1000 Suzuki. Now it will be R1's I suppose.
I will be at Creg-Ny-Baa pub at 1pm in case anyone can make it. Bike is a tatty red XR600 reg E311 LAN. My mobile number is 07957 780167 or text me yours. Cheers Rob