Thanks everyone for your well wishes - they seemed to have worked.
It's been just over a week since my surgery, which went pretty much as the doctors expected, and after a week I'm finally home from the hospital. I'm still in some pain, and it's difficult to take even moderately deep breaths, but it's up me to work through that and re-build my endurance. I'm still very loopy from the pain medication I'm taking, and so it will be at least another week before I trust myself enough to go back into the shop. I was told I wouldn't be able to lift more than five pounds or so for the first couple weeks of recovery, and so before I went into the hospital I spent some time machining the parts and fixtures I would need for the Merlin's final assembly. Final assembly, which will be the next step, will require more patience and thought than strength, and so I should be up to handling it soon. - Terry