Hi, there, good day!
I believe i can help you with this project; I usually work AutoCAD and sketchup with renders in vray, this means I can give you a very good end result in little timeframe, I've a lot of experience modelling from furniture to entire buildings, so I understand how a CAD floor plan should be done, how to properly model a 3D and light usage, quality materials and render options (like the camera) in vray, also, I'm an architect so I'm qualified in understanding any plan you provide to work from, and commited to assist you in any particular view or expression of the final product.
As an architect I also have a lot of experience using Sketchup to model a 3D topography, so I already realized the only way to master the sandbox of google sketchup is to use other free plugins to model terrains and then adapt them to whatever is needed. Sandbox is never enough
I understand if you doubt about my skills and my experience, specially since I haven't been hired yet, I invite you to check my freelancer portfolio to see my previous works and also I give you my word that I will do everything in my power to give you the best result I can, and if I don't manage to give you a quality job, I will give your deposit back...
Take a chance to review my proposal, I'm known for my responsability and honesty, if there's something that I can't do I'll let you know, so this will help both of us achieve your goals in the best way possible.