Amazing story, very interesting and so cool work life balance!
Had an early X1/9 1300 with 1500 engine, nice and low, but rust in the engine compartment and head gasket problems finished it off...
Now I have a VW beach buggy with 2.2 tuned motor (0-60 in 6"), so no rust worries and easy to work on anything!
But cool to see a pukka toyota engine being used in an X1/9, great choice!, fascinating build story, had to read it all..
Hats off to you deocon, and best wishes from across the world!!