Sizeup is a cumulative process, and each step builds on previous steps. the first step is to:

The first step when engaging to size-up in which is considered to be a cumulative process, an individual or the group should engage into gathering facts. Gathering facts is like collecting information that could be further used in the future or can be used as a basis with the process that you’re trying to achieve.

answer; whoever is willing and able to pay the price;