that looks really really challenging.. But I am thinking about using the foam as a filler with some rocks to weigh it down.. and just top it of with MGOPM and some gravel.. I am thinking about scratching the whole project cause its so damn challenging that I think i'll be in over my head.. I am going to give it a couple of days to sink in before I buy things..
Really thinking about going to easy route and just toss everything in and start planting but idk.. its bugging me that this tank is sitting on the floor for a month already.