Don't know where your located, but you might try giving SHP and HCR both a call. Both are somewhat local to me, with SHP being about an hour or so South into SCI, and HCR being about an hour North, and I've done business with both numerious times over the years (SHP the most). Both places do good work at reasonable prices. I say that dependent upon what you call reasonable, cause a custom cylinder can often be more expensive than a standard, off the shelf one, but still less than one from the OEM. Hope this helps, and good luck.