can't contain excitement..have to share..tankupgrade!

Hello everybody! Im thrilled about my new tank so I have to share.. so I was planning my upgrade from the 55 garage sale tank (9monthsish1st salt) and i was about to go with a good deal on a 90 gal..I figured a 90 or 120 would be awesome ( they are) but , I came across a craigslist ad in charleston ..220gal tank stand rock skimmer sump etc that was 3 years old for an amazing price..I doubted it was legit but contacted the gentleman and was thrilled it wasnt sold..I got this for 550! Im going crazy here like cookie monster with a bag of cookies...ahhhhhhchcomchompchcomp!!! lol I had to pay some people for picking it up about 2 hours away but still the actual deal was 550..there was a nice surprise of lots of caribsea reef rock and a nice eschopps skimmer and sump..some no name leds' heater and some other goodies! yeeeehaaaawwwwww yeahhhhhhhhhhhhhbaby! this is not the upgrade i had planned..was about to buy a used 90 with no stand..I kind of want to do a remote additional sump ( other side of wall) with my 55 when i set it up and have like a sump/ and 55 refugium...any ideas on how i could safely plumb that...im open to suggestions....this hobby is very addicting..I feel as though I have just found spanish gold in the caribbean!