1. As I stated in your other post, I used the evolve directly connected to the battery without issue. I did caution that the evolve cable is only 2 ft long and you may want to get the 2m extension cable from Torqeedo (I said 1m but it is actually 2m). This will relieve stress on the cable and connector, make insertion/removal of the evolve easier, and make it easier to position the battery securely.
2. Yes, you can forego the ram mount and attach the throttle control directly to the H-rail universal mount. This is how mine is attached. This thread has pictures of this mounting method.
https://www.hobie.com/forums/viewtopic.php?f=26&t=59131In your planning include a leash for the alignment rod used to remove the evolve. You want this nearby and handy for quick removal in the shallows but don’t want to lose it. You’ll also need to consider what to do with the mirage drive while using the evolve so it can be safely secured out of the way.
Cheers.
Peter