Vista v1 stroller

Hi! Would appreciate any input!

I was gifted the Uppa Baby Vista v1 stroller and it seems to be in great shape. Id love to replace the covering and mattress pad (it looks like Uppa Baby sells the mattress for the 2015-2017 models). Any other recommendations on little things i can buy for this model of stroller?

I also would ideally like to buy a car seat that could work with this model using an adaptor. It looks like the Nuna Pipa is highly recommended. Would love any other recommendations!

Thank you! :)