Custom Mirrored Glass Infinity Box

I want a fully finished mirrored-glass infinity box built and shipped to me. The piece needs to follow my custom dimensions of roughly 1 m × 0.8 m × 0.4 m and keep the clean, seamless look of a cube-style form factor... (Budget: £250 - £750 GBP, Jobs: Glass / Mirror & Glazing, Lighting)