Kevin,
welcome. you certainly live in a nice state. I love OKC both Brick Town & the Wild West Museum.
This may help
gomog.com is US based and has a lot of info , particularly on older cars.
https://www.gomog.com/Allon White is a UK dealer but they have a buyers guide that I expect they would send you.
https://allonwhite.co.uk/classic-morgan-car-buyers-guideLastly of course on here are other N American owners who will help.
John
