The problem is that you're asking the wrong question. "Advanced" doesn't mean anything in making beer. Advanced can mean technique, volume, specialized equipment, difficult recipes, lagers instead of ales, etc. Advanced compared to never having brewed before is even more subjective....so when you want to start "a little more advanced" then someone might advise you to start with partial mash instead of full extract, or they might say to brew 10 gallons instead of 5, or they might say to make an open-fermentation wild brew, or they might say to make a lager instead of an ale, or they might say to build an all electric eHERMs with a fermentation chamber and full digital PID-doohickies everywhere.
Do yourself a favor and take the time to look up BIAB. Just look it up before you go any further because I sincerely think that's a better path for you then trying to dive into building a brewing sculpture, especially when you can make essentially the exact same beer on a much smaller investment that can grow into a three tiered system if you ever need that.
BIAB sounds perfect. Didn't mean to get ahead of myself, but no one suggested that. Looks like it will give me more control with less expense. Thx bro