Alignment back to factory after swift. Now new wheels

[AdamRacer]

I installed swift springs back when I had stock wheels and got an alignment. The fronts were able to get back to factory but the rear was off by .4 - .6 degrees of to much negative camber due to its max adjustability.

I purchased new wheels recently with the offsets closer to flush. Should I get another alignment or would it stay the same as with the stock wheels?
Also I know I will need and probably should get rear camber arms which I have a few questions about.
1. Is it worth spending extra money on SPL if the car will never see a track?
2. Ive seen posts about the SPL causing a harsher ride to do the different design. Is this true?
3. Is rear camber arms all I need or do I need a kit that includes the toe bolts?

Any help would be appreciated!
Thanks.