Ed,
I have a correct rebuilt Lucas distributor for your car, its part number 41306B, with both an advance and retard unit. It fits TR-250 and 69 thru early 71 TR-6. I'm selling it on Ebay but no bids yet. Email me if interested. Everything on it is new or rebuilt. It has the original points setup, but you could change it to Petronix or Crane electronic ignition if you so desired.
Mark
1970 TR-6