An offer in Bittersweet

We are putting in an offer tonight on a house we viewed today. Its a bit small, but has a huge shed and a fenced yard. Its 1.3 acres and a third is fenced. So it will be good for the dogs and critters, Buns can go in the shed. But its finished and beautiful. We heard it had a showing after we left. So im hoping our realtor gets our offer in first and they accept.
If not, we have somewhat of a backup. There are two new constructions on an acre. No fence. But same price. BUt they are being built. I would have to shell out 10K for a fence and shed. But it would have a garage and the one we are offering on dosent. So its an option. Buns in the garage. Same size house. Offering house is 3 bedroom with a bonus room ill use as a room for kids, But wont have a door and cant be installed because the doors to the kids rooms is in that room. New construction is 4 bedroom 2 bath. And would be brand new everything. So less inspections haha.

Lots of pros and cons. So fingers crossed for some good news!