hey everone , recently sold my 40mm solex carbs in favour of a set of 36mm kiehin itbs

In the process of making a manifold , and I need to source an ecu

Been looking at megasquirt as they are cheap and do everything all the big brand ones do , but im still not sure whats the best option

Should I keep the single coil setup and go fuel only or go for multicoil and run a cas?

What would I use as a crabk angle reference? And what dozzyoptions do I have as ive been running a points dizzy as a trigger for my msd6al2

Thanks and any help would be awesome