I recently built the Special Hobby Mos.29, AI that this kit appears to be based on. I can offer the following advice:
The cockpit parts will need to have their width reduced to fit inside of the fuselage. The instrument panel, in particular, is much wider than the interior of the fuselage and required considerable thinning of the insides of the upper fuselage halves to get a satisfactory fit.
The struts don't fit, being either too long or too short. I replaced some of the struts and modified the others. If I was to build the kit again, I would replace all of the struts as they are too thick and the strut binding locations too prominent. The cabane strut location points on the fuselage are not angled correctly and don't line up with the strut location holes on the underside of the wing
The stub axles on the landing gear cross member are too short and don't allow enough of the axle to protrude through the slots on the uprights to attach the wheels. Also, the central vee strut on the landing gear does not fit. The angle of the vee is too sharp to allow the upper attachment points to contact the fuselage in the proper place.
The tail skid fairing is molded off center, canted, and one sided is molded deeper than the other.
The vertical and horizontal tailplanes have weak attachments to fuselage and I recommend pinning them.
I'm sure none of the issues that I listed will pose insurmountable challenges for a gifted modeler such as yourself, but hopefully my experience will be of some benefit to you.