About crimp - remember to use proper size to crimp. I mean if wire is 1.5 mm2 then use 1.5 (some have 1.5-2.5 combo) 'hole' in crimper, that way you will not bend the pin or make him not enough crimped. Also when you will look at pin he will have a pair of 'wings'. When you will crimp them, they need to bend at places they are designed for, like - bigger one is for wire insolation and smaller second is for cu/al or another metal that wire have. And about the lenght for isolation to take off, just only a little bit. Lenght of second small wings would be very ok (eventually +1mm for feeling save).
Gotta say this build looks better an better, also thanks for reply!