I tried one of the "do it yourself" things then went to this;

http://www.slimlineproducts.com/online_shop/m1_gas.htm

Mine's about a year old and looks a bit different, don't know if the picture is the older model like my buddy has, or if they've gone back to it but it works well and should have the F1 fittings for your fuel dot. Or at least I think that's what the DA dot uses...