Need Drum to Disc Brake Line Help

[the-wreck]

Hello
I put 72 disc set up on my 69 truck but kept the old crossmember. Im having trouble getting aftermarket brake lines to fit. The 72 disc lines are for brake hoses that are on the front of the cross member and my drum crossmember has the hose tabs on the rear of the crossmember. The problrm with the drum lines is they will not fit to the proportioning valve. The disc lines will require moving the tabs to the front of the crossmember Does anyone know of a fix? Someone once told me a solution but I lost thier email.
thank you