For those of us building a MK-312, the exact parts listed in the Bill Of Materials list may not be available locally. Some parts may have been discontinued by the manufacturer or local distributor. This is the place to discuss part substitutions.
I’ll start the topic. The suggested PacTec enclosure is no longer available locally and is only available internationally. Delivery costs are more than the cost of the enclosure (and import taxes to be added as well). A Hammond 1598D series case (I used 1598DBK, RS part number 119-8934) is a good replacement. The pre-made front panel fits well and the overall dimensions are virtually the same. The internal moulded PCB fixings are in different places in this box, so you will have to provide alternative means of fixing the PCB to this case.