Just finished shopping out my Whirlwind. It is fully working including the fan. It has the following upgrades and New parts (NOS means I bought them new/unused).

LED - I love experimenting with LED's so I used a combination of non-ghosting Cointaker and Comet and a few LIGHTS OUT brand.

The FAN is all new including; NOS Topper, NOS Fan Blade, NOS Fan Motor, NOS Triac board, Custom made NOS Fan bracket.
NOS Rottendog Blue LED Display.
NOS Translite.
Rubber has been changed out with Titan Competition Rings -Red, Blue, Green (See pictures for color schemes).
ALL NOS Plastic posts (Blue and Red).
Rebuilt Left side Popper with new plunger and coil
Rebuilt lift ramp with new ramp
Driver board has new Battery pack installed
NOS Drop Target Decals
NOS Spinner Decals
NOS right slingshot plastic
NOS pop bumper caps
Replaced all foam backing behind stationary targets
Replaced damaged stationary target
All play field parts removed cleaned and polished.
Most hardware (Screws, nuts, bolts) replaced with new stainless steel parts.

Machine is by no means perfect as the play field and cabinet are players condition but a lot of TLC has gone into it to get it back to looking and playing great.