LUGGAGE Q

I have a large suitcase 75cm tall, 45 cm wide (girth when unexpanded is just under 30cm). I have 2 other small suitcases which came as a set with this large one and fit nicely inside it.

After my Simply Italy & Paris/London tours end at the end of November I will be residing in Greece possibly long term if I find work lol.

My plan is to put the smaller suitcases inside the main large one and fill them up. It will be as though im carrying just the 1 suitcase and as long as what I put inside doesnt go over 20kgs im thinking there shouldnt be a problem?

I wanted to bring these other small suitcases because I will definitely need them after I finih my tours. The measurements of my large suitcase seem to be in line with Contiki requirements and like I said on the outside it'll look like it's only 1 suitcase anyway and it wont be over 20kg.

Does this sound like an ok idea/plan?

Cheers!