Early 70's brake conversion HOSES.

Okay guys, after spending way, way too many hours scratching my head and trying to come up with a product or ideas, I'm done. I don't know why I spent so much time when like them or not, I know I can find answers among the membership on here. I'm on my second brake conversion kit. The first one IMHO was complete garbage and only chosen because it would allow me to keep my original upper control arms. I don't have a lot good to say about the kit I have now either but I can work with it. My issue that I need an answer for is both kits came with lines that would work on 73 and up models but they will not work with the frame mounts for 70 to 72 models. Please, does anybody have some solid input how I can adapt the supplied lines with later model ends to mount safely and securely to my frame, or have any knowledge of lines or adapters that will convert to my frame mounts. I fear I'm not going to like some answers but please throw them at me, I'm all ears. Appreciate any and all help.