1995 Blazer 4 door 4WD Fuel Tank Vents. In replacing my fuel pump, I inadvertently broke off the little plastic tubes to attach the two vent hoses to the tank. Are these replaceable parts that separate from the tank?

In the meantime, I drilled out the broken stubs, inserted small brass tubes, and epoxied them in place for strength. I was planning on attaching my vent hoses to these using clamps. Does this sound reasonable?

I appreciate any and all advice.
Thanks, Doug Seals