As much as i'd want to have one Summicron or -lux, i just can't pay for it.
I have made a deal of a CV 35/2.5 PII with shade that is within my original budget and i think i can begin with this.
I was offered an Ultron 35/1.7 also, but the owner said it was soft (he had 2 of them) and he could not figure out what caused it, so i passed as it was a bit high prized anyway.