Tranny lines on a 1999 escort

My 1999 escort 2.0, automatic, sedan was repair by previous owner by way of 12 inch rubber hose. It seems that area keeps dripping slightly.

What is the proper way to repair or replace the line? Anyone know what size diameter they are and if they sell couplings to repair (I have seen some for brake lines). What amount would be needed to replace.

Anyone have tips on ways to make the job easy? Also about how much atf will come out if I open it up?

The rubber hose should work just fine. You need to get good clamps and make sure they are tight. Attach the line with zip ties to make sure they do not move around and vibrate too much.

The rubber hose is probably okay, assuming it was fuel line hose, or the rubber hose that you can buy that is made for auto-transmission fluid lines. Its just made a little thicker and for higher temperatures. There isnt much fluid pressure in the lines, maybe 20 psi at most.
Its normal to have to retighten a srew-type hose clamp after it has been in place. I snug them up at least twice after the initial install; once after a week, a 2nd time about a week or two later.
Of course you could get a new tube and hose assembly, from either a dealer or perhaps from www.rockauto.com.
I think about half a pint would be the most that would come out, if you opened up that connection. Of course dont run the engine with it open.

Update.
I went to a local aamco station today and they gave me a quote of 275.00 to replace with new lines from cooler to transmission. I bulked and went to my local guy who said he will look at it for me and cant see it being more then 75.00. He even said the fuel line is rated higher pressure then the amount the transmisson is moving at and hasnt had any problems replacing line with the fuel line hose.