yo jonathan, remember to put that one way valve as close to the tip of the syringe as you can, a mind like yours will work out why if you think about it, its not so important with the fish tank valves (almost zero resistance) iv had one of them fail so far, the one you have should be very robust
iv added the exsaust valve to my setup, makes life really easy :)
let us know if you have any eureka moments :)