I have one of these. Upgraded stock pickup to an Artec one, a brass bridge and new wiring. It plays really well. Nice and comfy.
It does suffer from the dreaded neck dive. I haven't really had issues with the bridge as of yet.
If I wanted to change bridge, there's a hipshot 3 point bridge which is an option, (I would probably get the cheapest black option!)
If I wasn't precious about tuners looking like the original ones, what lightweight ones could I get? Again Hipshot make a set, as do Gotoh I believe, but I would consider anything, not worried about looks / retro looks.