904 transmission shifting adjustments

What do you guys think about this kickdown lever. Should I leaved it tied toward the rear or get one of those lokar cable kits? I'm 99% sure this is a after market manual valve body.

What do guys think about this trans cooler, previous owner has the factory trans cooler in the radiator and an additional air cooler mounted on the front of the radiator? It kind of makes a night mare for running steel cooler lines.

What do you guys use for transmission cooler lines?

Also looking for a nice eng. oil pressure line instead of that plastic crap it comes with.

Steel lines would be a bugger.
Copper lines?
Aluminum?
AN stainless steel braided hoses?

Thanks for your input guys