Since i do not and cannot source semtex, i couldnt tell how long it would take to set it up. I can only speculate using the basic mechanical knowledge ive gained from 40+ years in the workforce and compare those timings with the physics required to rig up such things. Tl;dr: Just guessing
That would take too much advance prep and time.
More than sourcing the exact right kind of explosives to breach the armor without the FBI knowing?
Also, obligatory hello to the NSA who’s reading this right now.
Since i do not and cannot source semtex, i couldnt tell how long it would take to set it up. I can only speculate using the basic mechanical knowledge ive gained from 40+ years in the workforce and compare those timings with the physics required to rig up such things. Tl;dr: Just guessing