This ICM kit is known for its .... poor fit.
However its designer, famous Ukrainian modeller Valentin Muchichko used to say that "the fit is perfect and if something does not fit then you are doing it wrong".
The challenge is to build this kit with minimal amount of sanding/puttying proving this claim.
No interior details are given in the kit but there is an etched set. It is definitely Eduard but sold under Kuivalainen brand, no idea why.
An advice that Valentin given was to think before gluing and check parts placement. Indeed, with careful cleaning and dry fitting parts come together very well.
Many people find mid-aft fuselage join problematic. In my dry assembly they match without any gaps at all
Same with mid-front sections
Same with wings
Engine cowlings are more problematic. Each cowling is comprised of 4 parts, I guess due to moulding equipment limitations
The only place so far where the parts don't just "click". Maybe I haven't yet realized how