Sentence 1: They knew they had to get new flooring before selling their house. 
 Sentence 3: They finally decided on a nice vinyl that they thought would go well 
 Sentence 4:  They paid for it in full and waited for the installation 
 Sentence 5:  Once the installation was done they were impressed with how it looked! 
 Option 1: However, the realtor surprised them with a buyer who wanted to install their own flooring. 
 Option 2: They went to a number of carpet stores to get the best prices.