surfthenet, that will be a lot of trouble... even if that wave you have angered 25 times had zero armor, it will have 1032 armor, which is a very high value, even if not taking those HPs into account. You will need no less than grade 12 L/Y (R/Y, */Y in fact) towers to even try to defeat this amount, and a real lot of grade 8 L/P for some places where your grade 12s will be wasted because of them attacking monsters that will be banshed before their attack lands. Of course, some traps will have to be changed for R/Ps.
Speaking about *ANY* possibility - that depends on initial armor, if it was higher than 10, then no I think, if lower, then perhaps there is, you are to stop raising multiplier and build defences.
10-13 times... well, for 10-11 grade towers this is abit on the lower side... my last battle (13M exp, whew) has its last wave #40 angered 14 times with grade 11 gems (abit low in fact), 315 monsters, 170 armor and 290k HP, but I had too much of other undispatched monsters around... 1800 is too big, I am risking some monsters to leak amassing huge banishment costs. Some previous waves were angered 15 times, still too low I think, but I am plain afraid angering 20 times.
fractalman, you give me the creeps... 102.6 multiplier *faints* My last battle had only 18... well that was a normal type of battle and you are fighting GoE's full power, but nevertheless...