I would say the best thing for you to do is give it to me, oh and your discus, lol ha ha I wish my wife would let me have something that large.
I would seriously consider a wet dry trickel and even with a canister filter for extra filtration power. i always wanted to try a wet dry I do not know what kind of canister filter to tell you to use. I went cheap 120$ for a cascade 1000 for my 55 gallon works great! I also recently added a HOB rated for a 30 gallon just for extra mechanical filtration.But I have always been interested in the wet drys you can put your heater and whatever else in there plus you can make it your self and you can make it as large as you need it, plus it would give you tons of biological filtration as well and the only thing you would have to worry about is the sump pump! plus you cn see everything thats the one thing I hate aout my canister filter is I can not visual see when it gets dirty I have to shut down and take hoses off at least with a wet dry you can see everything and replacing things like filter pads would be a breeze
Just my opionion