[NATIVEVAMAN]

In some respects you have the perfect set up especially with the basement for your sump.I would definatly not use a siphon for the overflow there tendancy to cause floods is historic and monumental.22 inch's is a workable heigth but it wont be easy and it does limit the size of live rock pieces you can put in the tank.I would build a nice table in the basement for sump/fuge.Just put it right under the tank.there are plenty of pumps that will lift water that high.You might want to go with 1 1/4 inch drain and 1inch return to increase the flow a bit.depending on the left over room at the top you might not be able to use metal halide lighting because even if a mh unit would fit it might be to close and cause heat problems.However t 5's will work just fine and you wont need a chiller.I am currntly working a 65 for my sweety and she insists on a pair of tangs. I am hoping that if we get them small they will acclimate to the tank size.But by the time they get big I will have a 135 running.