Well, Dr. Duke Cameron made me go back to work at 8 weeks and told me and my employers I could lift something like 30, 40 or 50 pounds! Yow! (I could never lift much over 30 and would be terrified for my back and other innards if I did.) If you heal as quickly as I think you will, and your wife (or another "responsible adult") is there to watch out for you, I think you could make it. After all, Hopkins gets people from other countries all the time who presumably fly back to their home countries after discharge from the hospital. (Hey, ask Cameron or the stern Dee about it.)
However, you might want trip insurance, or at least have refundable tickets, "just in case"--that is an expensive trip! Also, you really should get the medical insurance they sell for Americans abroad. (I have known Americans who have had to seek care for dissections abroad. Sadly, one died due to all of the walking she did while touring Italy.--Take the bus tour, CD, not the walking tour at that point in your recovery!)
You have a relative who is a Cardinal or something?