In all honesty, if it is possible I'd skip the Beaverkill. In cooks falls i've seen it at 120-190, which is prime wading. Even then when i tried to wade across a riffle, lost my footing a couple times. Its at 685 as of right now, it should drop down a bunch more by the weekend, and the water will get a little warmer. IF you do fish it, take a ride up to the covered bridge. Its a historic place with a huge hole underneath. Pretty neat. Down in cooks falls right off 17 is good water too. Last year to this day actually i had 4 or 5 wild bows and a 21 inch brown down there. All on nymphs. Honestly, the WB and EB are at prime wading levels right now. I'd hit the upper EB, or any of the accesses on the WB. Goodluck, let us know how it goes!