Should i get the joolz aer 2 footboard for my 5.5 year old who's right at the weight limit for international travel this summer in korea?

Hi,

So i got a new travel stroller as our yoyo of 5 years broke down and i needed a new one for summer in korea for almost 3 months. I'll be solo parenting for most of it. I got the Joolz aer 2. I also got a wildride carrier for my 2 year old since she is always asking to be held.

My question is...do i need the footboard for my first who's almost at the weight limit? She hovers between 48-49 lbs not quite 50 yet. She is always wanting to sit and complains and i just don't want to have meltdowns when i'm alone for 2 months.

Trying to get it secondhand but not easy. It's just a bit pricey for something that i won't be using for a long time. What would you do?