okay i have read the thread over and i think i understand your issue .. as a mechanical guy i think i can help... if LN cant.
now that you can get a socket on and hold the middle with the screwdriver... .. you need to grind 2 flats on the socket..
this will allow you to put a crowfoot on the socket, then put your torque wrench on the crows foot and tighten to spec. Remember that the torque value will need to be recalculated due to the length of the crow's-foot but that value is easy ...
just remember your torque wrench has to fit on the crows foot and clear the socket.. I have a small head beam torque wrench which is perfect, but they might be hard to find now.
something like this if the head of your torque wrench is too big.
https://www.summitracing.com/parts/ttn-23140?srsltid=AfmBOopI5wdDN9cYew5rCafy3rX_JrlLD1np 3yvxx_Jx2pEQD6JddE2zKtQ
Threaded Mode
