Several years ago, when Potomac Motors of Frederick, Md used to run an open yard on Saturdays, I was able to pick up four decent, used alloys for, believe it or not, $10.00 a piece. As I recall, the ones that fit the W113 have a red stripe on the innner part of the rim--part covered by the tire when it is mounted. I bead blasted these, painted with base/clear silver PPG acrylic poly urethane, bought new plastic hub caps and lug bolts--they came out great. Point is, you may be able to pick these up very cheaply at a salvage yard and can come out way ahead if you're willing to spend some time cleaning them up and "accessorizing"--these same rims that fit 113s were used on many styles of MBs for many years.