[Brian R.]

IMO, don't use any other type of filter. You are taking a big risk by using anything as a filter other than a hard-plumbed filter like the OEM filter. If you had extra length of line, you could cut off the damaged end and reflare the tubing with a new fitting. I don't think you have enough extra length of tubing to do that. (Next time use some penetrating oil on the fitting if you didn't already do that).

One other possible fix is to cut the tubing from the pump off on the horizontal length and fashion a 90 degree extension (with a tubing bender and the exact same size and wall thickness of stainless steel tubing) of the same dimensions as the damaged part. Have both a female and male fitting on the ends of this extension. Then flare the end of the horizontal tube from the pump and install a male fitting on that end. You would end up with an extra fitting on the line. As long as you made good-quality connections and use the correct size tubing, that should work.

For the transmission, try flushing it and replacing the filter. Just draining it only replaces a small portion of the fluid.