Well. At the first time I'm very happy for you and for you evolution. I think that moving the spine is a good idea to bring shin guards.
And in the first time: You have would try to pass the spine (double coping) with one foot. You make a smooth jump with descision and put one foot on the double coping. At the same time you need to put the other foot in the next ramp for land it, and rolling.
After that enjoy and shouts of joy, hehehe
About the wheels: You need to probe diferents kinds of durometer. In my case always I use 103a, 62mm, for my this kind are perfect, but I think for you the best opcion will be to probe at first time with 85a and after that 95, 96 or 97a.The diameter up to you. The bigger to run more. Smaller for lip tricks to make more and better handling.
I hope that the info help you. And sorry for my English.
I hope that you understand me. hehehehe
Cheers and skate and smile. : )