This Bass here is £50k?
http://www.contrabass.co.uk/2693.htm , The Brock.
That's about $80k U$D depending on the day and rate. Actually, my Martini is in the same range and age almost. I saw a few other Italian basses of a similar age at the ISB that were actually priced quite higher. Gee, maybe my Martini is too low. The classic looking Brock sounds like a great bass and looks great too.
On your Pollmann, I know exactly what you mean. I have owned 3 of them personally and the last was the best I think and the youngest as well. They do a good job in the Orchestra but if you desire that older sweeter mature complex tone, you will have to look further for it I think.
On the Brock bass, you will notice the Krutz tuners on it. I showed Tony Houske my Gilkes pics one day and he came back asking where he could get tuners like those. Well, now we know he got them and put them on a fine bass no doubt. I have them on my Martini as well.