Three owners and the interior still looks very nice indeed (
esp. da seats)!
The door weather seals for the Milano are getting very hard to find. They may be NLA. You might try here:
PUSH-ON TRIM WEATHERSTRIPS FOR DOORS, TRUNKS, WINDOWS - JCWhitney Auto Parts
As for the inner door panels and rear view mirrors, try APE.
Alfa Romeo Page
Flygirl, I wouldn't waste my money on an aluminum radiator ($500+). Just get yours cleaned or replaced. Flush the whole system once a year (I do mine in late fall), and make sure the fan comes on when it's supposed to. Maybe add some water wetter
Red Line Oil: Coolants and Others after the flush with a 60/40 (water/coolant) mixture. Also, run 20w-50 Castrol GTX motor oil. See how that does.
Good luck and enjoy!