No, you would not enter all the numbers (Boxes 8 through 20) in both K-1s.
I believe the best approach is to enter the information in Boxes 8 through 20 on the K-1 that reports the Box 2 amount, and report only the Box 1 amount on the other K-1.
The administrative information ( Part I - Information about the Partnership, Part II - Information about the Partner) go on both K-1s, with one exception - Section J (Partner's Share of Profit, Loss and Capital) does not go on both K-1s.
