Need recommendation how to pack Stroller & Carseat or Travel Systems as a check-in baggage for air travel?

I plan to travel abroad and would like to bring the travel system, (stroller and car seat) with me. The baby is living overseas and this will be a gift for my wife because the item is twice as expensive than purchasing in the US.

I would like to tie the stroller and car seat together and put it as a one-piece baggage. I have another luggage with me. These are not the carried on items.

The weight is not the problem because the airlines allow 50 lbs per item. I would like the stroller and car seat to arrive safely at the destination. They informed me that the grid combined should not be over 62". If I wrap them together, with a shrink-wrap or box, will there be any acceptable.

Does anyone have the ideas how I should do it? Please do not recommend me to buy a new one over there. I do appreciate your sincere response.

I don't know if it's possible to pack them together as one item. The best way to pack them would be to leave them in the origional packaging (if possible). If that's not possible, then go to a packaging store (UPS Store, FedEx Kinkos) and have them box up the stroller and car seat for you.

I highly doubt that you will be able to package the stroller and car seat together and come in under 62 inches. Your best bet would be to pack them seperatly and pay for an extra bag or ship them via FedEx or UPS.