looking to replace the fuel lines on my 74 2.0. How many feet of line do i need?

I've used both Goodyear and Gates which Tangerine Racing sales and prefer the Gates. It is stiffer but it won't kink like 30R9 & R7. Also, the inner layer of the "R" series will separate if there is a sharp edge fitting shoved inside it. Harbor Freight has a sale on a measuring tapes this weekend.

Trying to pick up the line on the way to the car. Saving myself an extra trip