Welcome to Simply Discus Oldcabin.
Very pristine and classy set-up. Perfect biotope to display Discus and sure they will do well under your care.
Just a thought...I have a friend with a familiar planted set-up and what he has done is install a power-head at one end only used prior to w/c to clear debris that may accumulate around base of driftwood/ground cover planted area that would be difficult to siphon otherwise.
Keep us updated on what Discus you decide on but will advise you first go through our Sponsor venders page for reputable quality Discus.
...Ralph