I've got the spin on adapter as well. But I did a few oil changes before I added it. The filter wrench for the OEM was only a few $$$ and it fits a couple of the other cars I do. It was this one:
Amazon.com: Lisle 61570 76mm 14-Flute End Cap Wrench Set: Automotive
I think a few local places had this size as well for even less. I wouldn't do the OEM filter housing by hand as it is tough to get on. With the spin on adapter I do it by hand.