Superb job there, nice to see a 309 gti being kept alive.
I had one back in 1996 which had a few tweeks (superchip, induction kit, lowered) and was a fantastic handling car and surpsingly quick. Have since had a fair few 205 gti's and none handled as well as that 309 gti.
Shame very few seem to have survived its good to see one being preserved!