You guys have a part number?

Brake Booster for '90 to '92 Land Cruiser FJ80
Brake booster for 1/'90 to 7/'92 Toyota Land Cruiser FJ80. Direct replacement for the discontinued OEM booster, part # 44610-60620. This booster is brand new. It's not a rebuilt, not a reman, and there is no core charge. Add decal Tip: Please be sure your master cylinder is not leaking fluid or...
www.cityracerllc.com
None atm, @cruisermatt makes a nice option I will probably jump for sometime soonSide question... what loom are you using for your new wiring?

60 Series Brake Master Cylinder Upgrade Harness
Installing a T100 or 80 Series brake master cylinder in your 60 series to go along with a brake upgrade? This harness adapts and extends the brake fluid level switch wiring seamlessly. If you have any questions about compatibility or installation, please do not hesitate to reach out to us for...
cruisermatts.com