How about this?
Some syncro's I see are 2 or 4 gauges (vacuum) on plate, with hoses.
Why couldn't a guy go to say AutoZone, and "rent" (free when returned) 2 big 3" diameter gauges, use his own fittings, and have NOTHING setting around the garage being used 1 day out of a year, or so?
Maybe even switch the gauges on each cylinder to be sure they are "calibrated"....ie "read the same" before "trusting" them for the syncro job.
Input appreciated, I personally have not done this.
Stock Air box (UNI-Filter), HK's, River Road XL Slant Braided saddlebags, 6 degree Timing Advance, Mustang Wide Touring w/ Driver Backrest, PF3 Windshield, Chrome Engine Side covers, Lower forks, Final drive, Driveshaft, Swingarm, Master Cylinders, Brake caliper
1983 VF1100C Magna