Early 740 oil cooler lines leaking

I have an early style air cooled oil filter housing and I touched them, lol. They wont stop leaking at this point so they are going to get replaced/upgraded.

What has everyone done when redoing these lines? I will more then likely replace with parker hose and push lok unless there is another kit or product that works better.

Thoughts?

I replaced the o-rings twice and the adapter fitting seals once on my 88 765. Best not to mess with these unless you have experience with them. But eventually the o-rings will harden and start to leak.