Beverley would have been outfitted with an Everplay Extra as standard equipment. I have a few of these heads and they are very similar to Remo Diplomats. I don't know , which Evans head woulkd match that but you can find out from their respective websites. Basically the material is the same ---it is the thickness , that is important. A centrespot head might deaden and deepen the drum a little but be more durable. The snare side head is not all that important except that the older heads were fairly thin; probably a diplomat or equivalent should work as well. Wires are more iffy. I'm not sure what period you are attempting to emulate but there was a bit of a revolution in snare wires around the end of the 60's----probably into the early 70's.

British drum companies used high carbon steel wires up until a certain point and then shifted over to chromed steel just like everybody else. I have a lot of drums from the 50's and 60's and a lot of them came with original wires. The high carbon steel wires have a unique sound. It was not uncommon for drums to have 8,10 or 12 strands in those days----16 was a lot but with the advent of chromed soft steel wires everybody went hog wild for 20, then 24 then 30 and on and on because the wires sounded crappy and the assumption was that you could make up for this with more wires. -----so the sound of the drums changed----deeper and throatier; more wires with a lower timbre because they were no longer bright sounding spring steel. hope this helps.

Aquarian Z-100. Roy Burns will set you up with a complete set for your vintage kit and they will sound amazing on these drums.

Reverse dot batter heads are the snare sound of a lot of 70's and 80's recordings, thus their popularity in the drum market. I think a reverse dot / powercentre head is the best head for a majority of snare drums = Great balance between lively outter edge sound, and a meaty centre head sound with some attack. Thats my two penneth.The Band