Viper brakes

Is that the kit from www.arengineering.com ??

You could email arengineering and ask for the lenght and spec hose to use. There's a good chance there is something of the shelf that would work.

Are you going to use the 11.75 mopar rotor or go with is 13" disk kit?

A local hydraulic supply company usually could make you up the braided brake line. http://www.ormebrothers.com/index.html is local here and are really good.