I need someone trusted to import some Revit files for me

[colin]

There is a way to invite the Revit user to your project, and have their model be converted. See this post:

Revit Importer for Mac

If you invite the Revit modeler in one of your projects, he/she could than install the Trimble connect fo rRevit addin. It has an option to convert the Revit model to trimbim, and than upload it to your project, which you would than could import in SketchUp.