Cool boat! But not a super easy installation. I’m fairly new at this stuff, but gave it a lot of thought before I pulled the trigger. (Or drilled any holes in my fibreglass.)
So, instead of any installation advice, maybe some things to think about...
1) I wouldn’t want riggers without the swivel mount. The mount is quite tall, so you need to consider it being a tripping hazard when boarding.
2) I personally think they should be mounted as far back as possible to keep your lines from going under the boat when you have to do a tight turn.
3) You want easy access to the brake & retrieve switch.
4) Consider the length of the boom & where it will end up when swung forward or back.
5) If the rod holder is on the boom, how far do you have to lean over to get the rod out?
6) Are you going to mount a trap hauler on the same mount? Puts a higher load on the base assembly.
That’s all I can think of at the moment. I’m sure others can add to the list.
If you are not a DIY kind of person, with access to some rudimentary tools & basic knowledge of electrics, it might be best to hire a pro. But, do spend some time placing the rigger in different spots to see how it will fit & how easy it is to reach. That will help you decide which mounting system to use.
At first thought, I would consider the rail mount system for your boat. If the rails are sturdy, with good backing at the mount points.