Only you can decide what is right for you to do but here is something else to factor into your decision.

A single story home generally lives about 10% to 15% bigger than it is because there is less space lost to hallways/stairs vis a vis a 2 story house. So at the very least you should be comparing a 1900 sq ft home with a 2100 to 2200sq ft home. Also single story homes are in far more limited supply while being in relatively limited demand. Builders hate them because they take up a much bigger footprint and build them because cities force them to. Throw in rising demand from soon to be retired boomers and you have a safer bet with one over the long run.

Not that you should run out and buy because of this but it is very important information to understand and apply to your decision making process.