I run a commercial shop, pretty well equipped. For all of our solid wood glue ups we glue directly off the straight line rip saw using premium GL blades. Works great and is the industry standard method. That said a glue line rip blade requires more power because it is shaving the edges smooth as it cuts. I tried using one on a 3hp table saw but it didn't have enough power. You can straighten the edges on your table saw by attaching a straight guide to the boards and using your fence. Your blade may not give an ideal glue surface but you can get that with a shooting board and a hand plane after you have ripped the boards straight. Just one pass with the plane and you will have a perfect edge. Remember to always alternate faces so any angular error is self compensating.
Skip the pocket screws and use bar or pipe clamps, half on top, half on the bottom face. Keep the pipe or bar from touching the glue lines or you will get deep staining. If you work fast you won't need any means of aligning other than a soft face mallet or block of wood and a hammer. You can always clamp top/bottom cauls to help align the edges if you feel the need. Just be sure to remove them before the glue sets. A well prepared glue surface doesn't need any means of "reinforcing." Biscuits, Dominos, or dowels can be used to help align but serve no structural purpose.
About pipe clamps: use 3/4" ones unless you are doing very small work. The Pony brand, orange, is better than most imports and will last a lifetime. Use black pipe, not galvanized. The zinc coating is too soft and will allow the clamps to slip. Black pipe is available in at least 3 wall thicknesses. The thicker the stiffer & heavier. Pipes will bow under relatively moderate force so keep them above the work so they don't affect the flatness of the work. A properly made glue joint doesn't require high pressure. BTW there is an old wives tale about "too much pressure will starve the glue line." That is not true for most woodworking glues but is for epoxies. Titebond original works very well. It is best to glue as soon after you prepare the edges as you can.