So far, our search for an Austin-Healey 3000 to drive to the 75th annual convention next year in Lake Tahoe has involved a lot of excitement but no car. Last week we mentioned two cars that had caught our eye. One was a 1960 BT7 Mk 1 with plastic side curtains in Monterey, CA, and the other was a later BJ7 Mk II with windup windows in Texas. I owned a side-curtain BN7 that I drove to the 50th anni...