The car seat scamble has begun

Yikes. I just ordered Sarah's new car seat since it was on sale for $184 (much better than the $230 regular price). Unreal! We have 49" of space in the back seat of the van. Sarah's new car seat (the narrowest 5 point harness available) is 17" wide. The two backless boosters we have are 16" wide. 17+16+16=49 Do you think it will be a tight fit for three kids back there? If we can't make it work even after using seatbelt extenders, option B is to order a new 15" backless booster for $70+shipping. And then once I have spent a small fortune getting three kids into the back row, we have to buy a new infant car seat as well. After the car seats, I have to think about all the other baby gear I need.....all the gear that I just gave away 8 months ago. I'll be seriously rethinking the baby gear gift giving process after this kid. This is the most expensive baby yet. Mark won't be quitting his 2nd job any time soon. In fact, maybe I can convince him to stay in Alaska longer. :)