Your source for lumber must be disappointing. Thats a lot of narrow boards for a table top! I love wide stock--whether its dimensional or live edge.
Exactly, rules and norms are what they are, and can always have exceptions. You are an example of a craftsman pushing a machine beyond its intended design. I commend your efforts, but also ask, "should you?". Is that the best use of your time and capital to modify machines to make them do something they werent designed to do in the first place? Also, im sure your infeed support is well thought out and built, but its not planed/ground cast iron. I need to go back and reread the OP's first post, but if this is for profit, then i dont think a "longbed" 8" machine is the correct answer. If he only has one of these projects, then yes, he should boot-strap it like you and get acceptable results and move on. I havent needed to do it before, but a track saw with a ripping blade and a long track might be the most cost effective solution too. I have a TS75 and long tracks, but i havent used them as a glueline rip yet. I cant personally attest to the results from this process.