I'll be the A hole here and tell you what it is worth. Just remember you asked.
First let me tell you that what you have in it does not make any difference cause it's still old and still a 150. Your lower unit will work for a while on a BP so pull it and keep for a spare. The rest of it should bring you 1500-2000.
You could get more by parting it out and listing it on www.screamanfly.com
Possibly.