Bridge LiveLink to Maya Vray

I've been trying out some megascan surfaces and plants in Maya and it connects the following to a Vray material:

Albedo - Diffuse Color
Roughness - Reflection Glossiness
Opacity - Opacity Map (for leaves, plants etc.)
Normal - Bump/Normal mapping slot (Normal map in tangent space)

I've been able to set up AO and Displacement but the following textures are not assigned and I'm not sure if or how they should be:

Specular
Gloss
Translucency (available for leaves and such)

I just want to make sure I'm using all the applicable textures in a correct way.