where to tap for EGT if going tubular manifold?

[VQdriver]

i was wondering where a good location for the EGT sensor would be. i know ideally on the manifold itself, but welding on it would compromise the strength correct? unfortuneately my original defi probe was damaged during the manifold swap to begin with. several attempts to salvage and swap used (different brand) probes have failed. i might gamble and buy an EGT probe from ebay, but those are autometer brand. i'm not sure if the sensors would be compatible with Defi. i probably might just end up buying an entirely new gauge since that's the only guaranteed to work solution. the idea was presented to me by my buddy doing the install. perhaps the location of the sensor is too far away and is causing the signal to fall out of range of the gauge, thus the gauge not working properly. i'd like to think the sensors aren't compatible with the gauge. but ideas are needed. what do you guys with the tubular manifold do with the EGT?