Stroller help for an 80lbs 7 year old

Going to Disneyland in April - my mom, me, my husband, and 2 kids - 7 and 5. I know we will want a stroller at times, especially for the 7 year old as she tires much more quickly than my 5 year old son (man, I wish I could bottle 5 year old boy energy!!!). 7 year old is 80lbs, 5 year old is just under 40lbs. Most double strollers have a 100lbs weight limit. I can get a special needs stroller that goes up to 125lbs and then a single for my son.

Suggestions??? What do I rent??? double and be over the weight limit? 2 singles???

Thank you!!