The paint scheme for the USS England as shown in the instructions is what was called Measure 21. This called for overall Navy Blue. The Navy's designation for Navy Blue paint during WWII was 5-N. The decks and horizontal surfaces were painted 20B Weather Deck Blue. Expendable items, such as the depth charges and depth charge arbors were not painted. They would most likely be left in the same paint they were delivered in (mid-neutral gray? 5-O Ocean Gray? your choice). Life rings, life rafts, floater net baskets, mast, yardarm, gun pedestals & shields, railings, depth charge racks, ready service ammo lockers, etc. would be painted 5-N also. The barrels on the 20mm guns would be left gun metal while the whole 3-inch mount would be 5-N. Basically it was a blue on blue scheme, quite easy to paint (but perhaps a bit boring).
The Buckley-class destroyer escorts were also painted in some of the Measure 3x dazzle patterns, such as Ms 32/1D
opposite side at http://www.history.navy.mil/photos/images/g100000/g172872c.htm
or Ms 31/24D
opposite side at http://www.history.navy.mil/photos/images/g100000/g105512c.htm
As you can tell from the address, these camouflage diagrams are from the US Naval Historical Center. They have not been officially posted but James Corley at Nautilus Models has been gleaning the information by backdooring some USNHC directories. You can see his entire list here http://nautilusmodels.com/camouflage.htm Scroll down to Buckley-class Destroyer Escorts. Some of these patetrns were also printed in a recent IPMS USA magazine.
You will want to look at the camouflage measure informaton at shipcamouflage.com also
http://www.shipcamouflage.com/measures.htm
From your signature block I see that you are from England. The US Navy transferred several of the Buckley-class destroyer escorts to the RN which called them the Captain-class. White Ensign Models is preparing a conversion set (resin RN type guns, RN type boats, life rafts, etc. and PE) which will convert a Buckley to a Captain. WEM will also be able to help you locate the correct paints either as a US Navy or RN ship.