Best Componet rack for large Tube Amps

I just took delivery of my new VAC 140's......and they are heavy...95lbs ea. These amps have me reconfiguring my listening area....so i need a new amp rack that will hold 4 amps. Total weight will be about 350lbs and the shelf size must be at least 18x18. The one concern I have is heat and space for adequate ventilation as well as build quality and sonic performance. I have looked at several racks and right now I'm leaning to a Mapleshade Samson V2 with 4" shelves. I'm sure there are others and my budget is a 1800+ or minus. I need recomendations as this is the only thing from me and some great sound.