Brake line kit / prop valve for disc setup

I'm doing the 73-76 disc swap on my 64 dart and am needing brake lines. I called finelines and they can sell me a kit but it only works with a delco type combination/prop valve as seen here:

http://www.carolinaclassictrucks.com/172-1361-brake-valve.html

I was thinking I'd prefer to use the Original mopar type valve but they said their premade lines will not work with it.

They assured me that there wouldn't be much difference between the valves so I may just get the kit with the valve.

I guess my other option would be to make my own lines and use the original type valve.

Any other suggestions or advice would be appreciated. Thanks!