Some JB Kwik and a tiny screw (and a fair amount of luck), didn't need to replace mine last January!
(Took two tries: apparently brake kleen alone didn't prep the aluminum good enough it needed wire brush and heat with a micro torch: it was about 34f=1.1c at the time)
The fins bent are part of the repair process: needed to work the metal to get enough surface area for JBK to grab). Been almost a year since the repair still going strong.
(Not surprised I've repaired the high pressure line on AC evaporator same way and that's 250 psi vs. 15).