Found an eBay listing for you on the LEAF J1772 charging port:
https://www.ebay.com/itm/2011-2012-Nissan-Leaf-Charging-Port-Quick-Charge-296B1-3NA1A/113260191605?epid=1717807073&hash=item1a5ed55f75:g:b2kAAOSwhINbo2CQ
If it was me, I would do that work myself as it seems pretty straightforward to do, based on other posts on MNL.
How did you determine that there's an open circuit on the charging board?
Also, a common issue on the 2011/2012 OBC is a burned out diode. Look on these forums for a YouTube video link to troubleshoot that, as well as instructions on how to add an inline diode at the charging port, so you don't have to repair the diode on the OBC.
I'm not saying it's definitely a diode issue, but it's a strong possibility and worth looking into...