I purchased a set from Bekkers for my 260E. $478 was a good price. You will actually get two sets of blinkers -- one clear, one amber -- for that price.
I would therefore recommend the lower priced amber set, and get In.Pro silver/grey blinkers which will look a bit better.
If you want clear, I still have my unused set from Bekkers. Let me know if you are interested in them.