What is David Ortiz' value?

[Mateo de Lorenzo]

I am in a dynasty league and looking to beef up my offense some. I have no crazy thoughts that Ortiz will be good for years more to come, but he can be an upgrade for my U right now, which is currently BJ Upton and Chris Young (we have two U positions).

The manager who has Ortiz is willing to trade him, and we have begun talks. He and I previously talked in depth about me trading for A-Rod, but he wanted too much in Pineida and Ike Davis for A-Rod and Scott Downs (holds are a category in this league). He has also shown interest in Bumgarner, whom I am more comfortable dealing. Is Bumgarner straight up for Papi too much?

Here is my roster:

C Carlos Ruiz
1b Kevin Youkilis
2b Brandon Phillips
3b Justin Turner
ss Alexei Ramirez
if Jamey Carol
lf Brett Garner
cf Matt Kemp
rf Andre Ethier
of Carlos Lee
u BJ Upton
u Chris Young
bn
dl david wright, ike davis

sp wandy rodriguez, madison bumgarner, vance worley, michael pineida, carl pavano, clayton kershaw, trevor cahill, chad billingsley, juan nicasio (streamer)
rp david hernandez, drew storen, eric o'flaherty, jose veras, cameron loe, joel hanrahan, javier lopez, joe nathan.
dl roy oswalt

So, a recap, what should I offer for Ortiz? The guy is looking towards next year and beyond. i am looking for ortiz to boost me up this year which little hope he will be beneficial next year. im just worried bumgarner is giving up too much, so want other ppls input.

[bginda2g]

I think if you can win this year, you try to get Ortiz.

If you can't win, it's not worth it. I don't think the margin from Oritz to Upton/Young is that great to begin with.

What about something like ARod/Papi for Bumgarner/Either? He gets younger and you get better immediately.