Unfortunately I was never very good at this part of marathoning. I'd run a BQ in October, take 2-3 weeks off, and by the time I felt like really training hard again it'd be early to mid-December. I'd string together a couple good months of training and the next thing you know it's March and time to start tapering. In retrospect the best thing to do is probably lots of slow jogging/walking the 1st and second week after with the goal to recover while not decreasing mileage too much. Then try to build up weekly mileage again (distance before speed) for another month, so by 6 weeks after you are ready to start doing some workouts. I was always super cautious/conservative having had a history of injuries to deal with. For me there was nothing worse than not being able to make the starting line.
It sounds like you are similar to me in terms of weekly mileage- I rarely hit 70 mpw but made sure to hit at least 3 weeks of 60. For a marathoner this is the low end of acceptable mileage, which means recovery is both harder and takes longer post marathon. It also depends on your age- youth is a great asset in recovery. I'd try what I outlined above, based on my own experience of 3 BQ's and 3 subsequent Bostons.