Modifying a Servo Tester for Toggle Switch Operation

Exploring potential for cheap turnout motorization via inexpensive servo testers from eBay. Servo $1.33 ea Servo Tester $1.18 ea SPDT Toggle Switch $0.53 ea Total $3.04 Servo https://www.ebay.com/itm/1-10Lot-9G-iSG90-Micro-Servo-Motor-RC-Robot-Helicopter-Airplane-Aircraf-Car-Boat/223547582400?ssPageName=STRK%3AMEBIDX%3AIT&var=522297775144&_trksid=p2057872.m2749.l2649 Servo Tester https://www.ebay.com/itm/NEW-3CH-ESC-Servo-Tester-CCPM-Consistency-Master-Checker-Tester-I/280875012283?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 SPDT Toggle Switch https://www.amazon.com/HiLetgo-AC125V-Terminals-Position-Toggle/dp/B079JBF815/ref=asc_df_B079JBF815/?tag=hyprod-20&linkCode=df0&hvadid=312065326466&hvpos=1o3&hvnetw=g&hvrand=17462823112076966843&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9003808&hvtargid=pla-670186728915&psc=1&tag=&ref=&adgrpid=67624217252&hvpone=&hvptwo=&hvadid=312065326466&hvpos=1o3&hvnetw=g&hvrand=17462823112076966843&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9003808&hvtargid=pla-670186728915