The WASD v2 has a completely standard, modern layout. You want to look for the following bottom row sizing:
1.25u - 1.25u - 1.25u - 6.25u - 1.25u - 1.25u - 1.25u - 1.25u
For instance, mechanicalkeyboards.com sells a doubleshot PBT set from Vortex that will fit this perfectly. Almost every group buy here as well will have this layout in the "basic kit."
Edit: in case you're unfamiliar with keycap unit sizing, everything is measured relative to a single alpha key, which is 1u.