Upload & Sell: Off
Nice pics from the sigma 28. I´m sorry to hear about your fungus-stricken 40/1.8 and 135/3.5. The 135 has all the front elements (the ones in front of the aperture blades) glued together, so if the fungus is between those elements, you´re out of luck. The lens is dead simple to take apart, so if the fungus is on one of the accessible lens surfaces, it should be no problem to have it cleaned.
The 40/1.8 is also easy to take apart and clean, but if I recall correctly it also has glued-together lens elements (it´s been a while since I took mine apart, and I have since then sold it to Makten on this forum, as a matter of fact).
Regarding the 135/3.5: I have four copies of that lens (don´t ask) and most of them are just collecting dust. One of them has the name and social security number of the former owner engraved on the barrel, so I probably can´t sell it for anything more than a symbolic amount. If you´re interested, you can have it for free (as long as you pay for the shipping). Other than the engravings, it´s in great shape (only minor dust between the elements, no fungus).