2ohm

Hello all, I am currently looking for suggestions on what 12" single sub i should match with my Rockford Fosgate p500-2. Live in a smaller town and the guy working behind the counter at the local audio install store was not giving me vibes that he knew anything about anything. See stats below...

Looking for two orions 15s older 2500rms version or new version… cannot find anywhere

My baselink amp appears to have finally died after 7 years of use. I took apart the case and the 10" sub seems to be fine. I get a 2ohm reading with my multimeter from the sub. I thought I would buy a sealed enclosure and a 300w mono amp and try to bring it back to life. Any thoughts on this...