I had a sinus lift and bone graft done when an implant was placed in my upper left last spring. This was my first implant so I'm not sure how the surgery would differ without the sinus lift/bone graft. I really had no problems with the surgery. The surgeon used a cadaver bone so I didn't have to deal with harvesting. I had the surgery on Friday afternoon and was back to work on Monday. I slept alot on Friday and Saturday but on Sunday I took the dogs for a walk and helped my boyfriend build a pantry in one of my closets
The hardest part about it was not being able to blow my nose for 2 weeks following the surgery so the bone graft could heal. Thankfully my spring allergies didn't set in until after the 2 weeks was over so I didn't have any problems.
Good luck with what ever decision you make!