That's going to be a really nice pool ! ?
I have three jets in swim out, two in steps and also have three above water line spray jets. What pump and filter do you think I should go with.A 3 hp rated pump is overkill for that pool. A 1.5 full-rated pump will be perfectly adequate unless you plan on having water features. It is important to place your returns correctly with an L-shape so you do not have and water circulation "dead" spots.
There is no particular advantage in a cartridge filter because you have an SWG. Filter comparisons have been beaten to death on this forum but there is a comprehensive article in pool school that will help you find out that each type has pros and cons with no single type being markedly superior.