^^^^ If the car is used for short trips around town and you check the Dorman tank for leaks once a week, I dont see a problem with that. Personally, I HATE random breakdowns, especially since every summer the wife and I take 2 or sometimes 3 2000+ mile road trips. If it were me, I would buy the improved Motorcraft tank and not have to worry about it for several years. Would you buy a "lifetime guarantee" POS AZ starter motor that you had to replace every 6 months when it left you stranded 500 miles from home?
05 Taurus SEL Duratec - my daily driver
04 Taurus SES Duratec - wifes car
95 Taurus GL Vulcan winter car
Toy #1 - 86 Tbird 5.0 (original owner) - LOTS of mods
Toy #2 - 88 Tbird Turbo Coupe - LOTS of mods
02 Pontiac Grand Prix GT
67 Honda 450 Super Sport - completely customized