Hello Kundik,
After examining my collection it seems I have found a few commemorative pounds. I don't really collect them therefore I don't have many (I don't know if you have them). I'm more of a French and Spanish commemorative collector, therefore if you decide you want some pesetas or Francs, give me a call
Anyway, by using Ebay offers I have concluded that each banknote is around 1 Euro, except the 50000 and 500000 banknotes which go from 6-8 Euros (correct me if I'm wrong). If you insist, I can give you the links of the Ebay offers that I found (Note: I used multiple offers to get a ground price).
The Latvian coins are in mint condition; bought from the bank, and therefore they aren't coins taken from circulation. I payed 6,50 Euros for the lot as they are quite expensive (even in Latvia). If you want, I can give you some other Latvian commemorative coins. I have multiple coins yet if none of them interest you, I can always denounce the 50000 and 500000 rubles as they are one of the most expensive ones.
Regards,
Tom Wolf