Power Brake Booster for 1968 Dodge Dart 270

Need 1968 Dodge Dart 270 power brake booster (Midland Ross) 8 1/2 in, single diaphragm, for drum brakes application. Placement of vacuum adapter at "10 o'clock position" viewed from front with all curved profile. Include firewall mounting bracket also. Live in VT so $30-40 s/h max using UPS would be OK w/very safe packing.