SLS Printer Overflow Issue

I'm working on a project that is involving an EOS M400 SLS printer and currently the part that is being produced is almost the maximum volume of the build chamber. Due to the geometry of the part it is causing the collector bins for the excess powder to fill up and during a print these have to be emptied about 2 times. Does anybody have experience with this machine or a similar issue and have any ideas on how to approach this issue? Ideally we would like to do as little modification to the machine as possible. Any help is appreciated.