Replacing the kitchen sink

Now that I've been to the hardware store 5 times for various parts and supplies, I've realized replacing the sink might have been a mistake. The old cast iron sink we pulled out was stained and dated. But it worked. This hole in the counter looks intimidating. If we're going to travel for long on the road, I'll need to know my way around a wrench.

This is what the finished sink looks like. Unfortunately, the drain has a slight leak. For now a pot is making up for my sloppy plumbing.