Nothing to it, I'm no plumber but, I've done a few. PVC, pvc cement, and some purple primer should do you just fine. I also got one of those fancy cutters, not necessary, but it sure makes your life easier. Measure twice,this has always been one of my faults. 45 degree elbows will help reduce head pressure. Put a small hole just below the water level in your DT to act as an anti-siphon, I feel this is important so that you don't get a ton of back flow into your sump if you ever have a power failure.
Another option, if you don't feel like doing the work (or spending the cash for all the fittings) for hard piping, do soft piping. By this I mean, attach hose barbs to everything and use clear tubing to connect everything. You'll need clamps, I use cheap metal ones for the ones out of the water and
these for the ones in the water (zip ties won't cut it here). They sell the plastic ones at ACE in the section with all the nuts and bolts.
What did you decide on for an overflow?