firewall gaskets for 74 duster?

I was looking on line and was hoping these would fit. It says for 67-72 but you think it will work? All for about $32

I need acc. pedal, wiper motor, and master cylinder. Heater motor later on.

http://cgi.ebay.com/ebaymotors/DMT-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

ebay Item number: 360160370500