Need a 68 up six cylinder flexplate!

I got the transmission for my 72 scamp..Thanks for all the help and suggestions! I scored a 67 dart parts car with a rebuilt 904!
Because it's a 67, I think I am going to need a newer flexplate (68 up slant six). Judging from the noise my 72 is making, the one in it is probably trashed and I THINK the 67 flexplate has a smaller register hole.