We quickly found that lifting the rafters in place was no big deal. Took maybe ten minutes to go get the rafter, walk it into the shop and set in place. What took the most time was squaring it up and then putting the temporary and later, permanent bracing in place. This took, on average, about an hour per rafter.
It took us about ten days to put up the first 31 trusses. Then we had to stop working on that for a while and build the front gable wall which was necessary to support the last (gable) rafter.