I haven't had much luck finding the plug, so I may have to go this route.Just for consideration, you could use female Bullet Terminals on the wire and then push them onto the studs .
Something like this ..
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90 Degree Female Molded Connector - WiringProducts, Ltd.
90 Degree single contact molded connector also know as a pigtail socket. Female bullet connector with right angle design is great for tight spaces and moisture protection. Wire length is 10 inches. Fits #8 Studs. Replaces GM #12112171 and AC/Delco #PT404. This products is also used for old style...wiringproducts.com
or this....
This may also help with the wiring ....
Good Luck ...
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