I need a motherboard tray with ten or more expansion slots for ≤$30. Mountain Mods offers two here but I won't pay those prices. Must support ATX, EATX, and HPTX boards like the EVGA SR-2 with four double-width video cards. Is this something I should have fabricated at a local metal shop? I live out in the boonies and don't know if the shops out here would fab this with sufficient precision.