Well as an update, I got this one again tonight. I tried the hunter trick and that got me a wipe lol. I then just followed some of the other advice, got the second boss down and then on the final boss I got the achievement for killing him in less than 4 minutes. I did notice that the spikes still hit toons even when they are on the rim, I presume this was nerfed at some point. Overall the second boss seemed the hardest but I think I will get the hang of it and soon be clearing it regularly
Thanks for all the help