Guys I am using Blender as main modeling tool and as you know it is a bit headache when it comes to animation. So I want to ask that what about modeling in Blender and making animation in Ikinema? Would it solve problems?

Ikinema Webanimate? I don’t think that would be a good solution.
Webanimate is great for mocap cleanup and retargeting but using it as your primary animation tool would be very difficult imo.
The cheapest and least frustrating solution I’ve found is Maya LT with it’s HumanIK system.