I have a DR120W and I'm hanging a Phresh Filter, 6" inline fan, rotating fan and a cool tube, I can almost guarantee you it can hold way more than that. Just set it up correctly and you will have no problems.
doubt it.You could probably cram it all in there,. but id be worried about the weight. I have a dr 120w, and the poles are nothing like the ones that were on my silver edition hydro hut. So id be more worried about your bars giving out from the weight of 2 filters and 2 hoods. and 2 inline fans. Why not set filters and fans outside of tent?