I have no idea whether they have any posters for sale, but we were discussing trading of some collectible items and

they obviously still have these posters available:

poster number available posters in categories w1, w2, w3
035
1
039
1
049
0,0,1[folds]
050
0,1,1[folds]+2[folds and creases
065
0,1
066
0,0,1[folds]
067
0,0,3[folds]
079
0,1
083
0,0,1
087
2
089
1 - lost, could be found maybe
090
0,0,1
095
1
101
1
106
1
124
1
129
1,1
132
1
143
1
168
0,0,2[xerox]

For any information about the posters, availability and for updates,
You will need to contact the owners: cuban@poster.wz.cz of the original page:

http://poster.wz.cz/listy/cuban1.htm.