Sounds like you are getting all the right parts. Which Ksports are you looking at? I know they make a few different ones.
The progress rear sway will be a huge improvement for you. You will be fine with the stock endlinks but be sure to use the reinforcement brackets on the lower control arm. There are some add-ons you can pick up for this piece later. (Moog endlinks, moog bushings, energy bushings)
I am not a fan of the design of the megan camber arms. They look to be stamped steel welded together where most other camber arms are a solid billet piece. I know they usually are a more budget friendly option but I see them listed for $250-ish. I know the Godspeed arms can be had for significantly less money and have, I think, a better billet design. Also being that close in price you could pick up the Skunk2 arms which I think are a very nicely designed arm. Some of the bushing issues have already been addressed and can be remedied quickly. (I do have the skunk arms myself so im kind of partial)
Ok so from Procivic the megan arms are $225, the skunk2 are $300, and the DME are $250. If you are looking to save a little I would probably point you at the DME arms.
I just see welds failing, rusting, or cracking at the ends where the forces are or all along the seam. That "pinch" design on the end with all the adjustments doesn't look as solid to me as the other arms. Also I see water getting into those holes and eating the arm from the inside out. For $25 i'd maybe consider the DME or another similar arm. (godspeed etc...)
Megans: 2 stamped steel sides welded together. Questionable steel quality and questionable welds I think.
The DME is another Skunk2 clone.
Both are solid billet aluminum arms with steel inserts for adjustments. Very similar.
And the Skunk2 arm: