Hi Jeff
Based on the teardown pictures, they are using IPEX connector.
the glue is probably there to hold them in place, also to prevent from accidental removal.
there are couple of choices.... either modify to this like below on the plastic... to allow removal antenna....
https://www.aliexpress.com/item/32947888168.html
as for the IPEX size connector … im not sure about it.
but adding in the link and hopefully someone can guide on this
https://www.wellshow.com/products/mini-coax-connector/ipex-connector/