That box on the bottom right shelf of my workbench is a spare M-1000 glass I got from NGrid in Liverpool. And no, you can't have it. I make it a policy to keep at least one spare refractor for each type of luminaire.
You think that's rare? I have a Pemco 400 watt that uses the same glass as the Sylvania Powerlite, but with the Pemco name on it. I got two of them from a takedown back in 2008, kept one scrapped the other for parts.
I have seen one PEMCO fixture ever. Kinda looks like the old M-250R if I remember correctly. The M-1000 is super rare here now. In 2002, Springfield, MA was loaded with HPS M-1000 but were all taken town and replaced with 400 MH tear drop fixtures. Other parts were replaced with MH 327's.
There was a B-Kwik in my neighborhood with four of them lighting the parking lot. Two of them later got changed out to 400 watt M-1000s and again , in 2008 the store underwent a major remodeling and all four of those lights were soon in my possession. I sold off one of the M1000s after I cleaned and reconditioned it, the other is in my personal collection, as is one of the Pemcos, the other was scrapped.
Bought another shelving unit to better organize my lights (Pics already posted) and moved my workbench and tool box to the other side of my workshop (where my traffic signals are located) and opened up quite a bit of space. Oh, if anyone is interested, you can find these shelves at Home Depot, the one I'm using for my small lights costs around $35 and has a 750 pound rated capacity, the large one I'm using for my medium and large lights costs $45 and has a 1000 pound rated capacity. Both are easy to assemble, built in the good old US of A, and are sturdy as hell!! Incidentally, the rated capacity is per shelf!