Opinions Needed

Need an opinion here; the second team in the draft is locked into a trade that forces him to lose his first round pick. I now have a shot at Megatron or Peterson. I also have Phillip Rivers on my bench as a 10th round keeper. I was just offered the following: 

Largest trade offer in league history!!!

Slapjacks get:

7th round (4th pick)

7th round (12th pick)

9th round (11th pick)

10th round (14th pick)

11th round (14th pick)

Taco Supreme gets:

P.Manning (slotted in the 1st)

10th round (3rd pick)

11th round (3rd pick)

12th round (3rd pick)

13th round (3rd pick)

14th round (3rd pick)