"Best deal" is kind of like "best wax".

Both kits contain a lot of products and for me, it is kind of like buying a set of wrenches or drill bits. Lots of things I may not need, but the package may very well be less expensive than buying everything individually.
FWIW, I went the individual item route and have no real regrets about my choice.
One thing I did do that I think I might do differently is my choice of pads. The Edge 2K system wasn't available at that time and I have a Velcro backing plate and lots of Velcro pads.
The Edge system seems like it would have some advantages with the only disadvantage being restricted to using only the Edge pads. That isn't necessarily a bad thing, but I do like having lots of choices with the Velcro pads available.
Since the cost evidently isn't a big factor to you, maybe a combination of the Edge system and pads plus a Velcro backing plate and some Velcro pads could be an alternative. You could have the best of both worlds by simply unsrewing the adaptor and screwing on the backing plate.
I personally don't have any cutting pads or MF bonnets and have never felt the need for them. Polishing pads and finishing pads seem to cover everything I do as a hobby detailer. For the professional, that might not be the case.
Charles