Might sound funny but youtube search sumps and you will see all kinds of DIY plans and how they did it. its pretty simple once you get the hang of it. yeah your lights are FINE IMO. also your ive rock will work as a bio filter for some filtration there hence the 1 to 2 pds per gallon you read about. but defently get the sump and fudge. also your PWR use them for circulation since you always read you want to turn over 10 to 20 times your water volume.