2015 Class:
Romario Williams $87,500
Conor Donovan $108,000
Cyle Larin $167,000
Cristian Roldan $102,000
Alex Bono $80,200
2014 Class
Andre Blake $113,000
AJ Cochran $73,500
Christian Dean $161,000
Marlon Hairston $93,000
Damion Lowe $68,500
Eric Miller $68,500
Schillo Tshuma $113,000
2013 Class
Deshorn Brown $113,000
Andrew Farrell $161,000
Jason Johnson $111,000
Kekuta Manneh $84,500
Mikey Lopez $147,000
Walker Zimmerman $155,100
Eriq Zavaleta $95,600
All of those are total compensation number, not just base salary. I'd say Harrison is at least in the top tier of these guys in terms of being sought after, and with the overall league salaries moving higher and higher, that's why I think $150k is a reasonable estimate for him.