I'm all for a new spawn for OP PvP, but I'm really not a fan of quartz buildings. I also don't think that really suits the spawn, tbh.
I don't really play anymore, but I think OP does need a new spawn and map. I think the spawn is an appropriate size and looks decent. My only problem is that it has the same general design as the current one. If you edited your ideas in this spawn to a more unique design, I think it could be used as a new spawn.