Long time fan of Entwistle neodymium pickups.
Loud AF, don't lose the mids and they don't have a stupid name designed to attract impressionable Americans π
I've fitted plenty of them over the years.
Pickup covers too big. Covers can be swapped, you just pop them off. Either reuse the one from your old pickup or Β£3 from eBay π
Poles too long. Generally not an issue if you're replacing a ceramic mag pickup or as @Bassman68 mentioned use springs instead of foam.
Should the pickup cavity be particularly shallow, you'll want a pencil, some masking tape and a drill. Masking tape goes in the cavity, rub the pencil on the bottom of the poles then press the pickup into the cavity. You'll have a line of dots showing where the poles will land, use the drill and make holes π Pickup will now drop in nicely and you won't have made the cavity any deeper.