When I bought my MGW Gen 2 shifter (12/18/2015), there was only one rear bushing. You should get with George and see if he is still making the other bushings.
It's straight forward and easy.I watched the video a couple months ago, still a little anxious about doing it.
Everyone swears by it though...I ought to just man up and order one I suppose.
No springs in the shifter. I noticed the shifter was a little stiff before I installed it and decided to lube the output shaft with some synthetic grease. Then I worked the shifter on the bench to distribute the grease. It loosened up pretty good on the bench and got better after installation.
Cman is the man. I received two bushings. The hardest part I had was getting the shifter thru the top of transmission tunnel. Liked to never got it thru.