225 swap

Okay guys here What I am doing. I have a 1966 Plymouth valiant with a 66 225.
I Bought a 225 out of a 69 satellite and found the oil pan does work and I guess
I have to change it . I am guessing but I think it will need the oil pickup also.
I also found the flex plate off the 66 don't fit the 69.
Does anyone have a quick fix to the flex plate problem ( the transmission and torque converter are also 66 ).
And if you have a a body 225 oil pan and oil pickup for a 66 I would be interested.

Just not a slant 6 guy.if you have parts PM