The port kits are ABS.... you can use pretty much anything ( hot melt glue, silicone, epoxy, etc... ) I would not use contact cement or regular wood glue.
Keep in mind silicone will affect finishes.... so unless it is done, I would not use it. Another alternative would be a urethane adhesive / sealant.
With the products you have I would use epoxy. ( JB weld is also an epoxy )
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