It has been discussed with various people that a tool to better monitor and combat cross-wiki vandalism is definitely needed on Miraheze. I haven't seen any alternatives that could work for us other than SWViewer, and that requires EventStreams.
Ah, so that might be the main issue here, the RAM usage? Perhaps a discussion with @Owen if we have room in the budget to increase the RAM allocated to one or more of our servers? If the budget is too tight, then I guess this is dependent on a rather significant donation from another benefactor?