I would go sump all the way. Not only is your sump an added amount of water and filtration system, but you could baffle it for injured fish, new fish, and of course fry. I love being able to soak my driftwood in the sump before adding it to the show area of the tank. It adds tannins O your water and let's the wood get the beneficial bacteria from your tank ahead of time. Also letting it get to the point that it will sink. Without a sump on my 55gallon tank my water changes took about 25-30 minutes. Now that I have a sump I can do a 30% water change on my 265gallon in 5 minutes or so. I run a canister as well for the nice flow and mechanical filtration. Go sump all the way man. Worst that can happen is you won't like it, but it will for sure filter your water. So you can't exactly fail.