If you go the multiple days off the bike route, be aware that the first day back on the bike will suck. Your power will be down, it'll hurt, etc. This is normal, don't let it discourage you. 60-90 minutes of easy spinning and your legs will once again feel limber enough that you'll be able to ride.
I'd probably just go with 3 days off the bike, then a ~60-90 minute EASY ride (like 12mph on flat ground kind of easy), and then re-asses from there. Even then I'd expect my legs to feel like crap on that easy ride.