You could probably get a gas or liquid post that would fit in your triclamp bulkhead if you want to avoid using what is already there for the thermowell.

Like this: https://www.amazon.com/Liquid-Connector-Brewing-Accessory-Fitting/dp/B08SK4DLK1/ref=mp_s_a_1_3?crid=30ATS4FH5M9SU&keywords=1.5%22+triclamp+ball+lock&qid=1681392248&sprefix=1.5+triclamp+ball%2Caps%2C1663&sr=8-3