You know Derek, I voted that you ( eventually ) sell those 150's and instead pursue making up some L220's ( on steroids ) .
Here are the boxes to start you off ( available at a very low price in Cdn $$ even ).
More stuff for sale by alnico
- Looks like the wrong foams on the wrong side of the cone ( but that's not a deal breaker ( IMHO ).
Your challenge is to convince him to ship all these parts ( including the networks and passive 15" drones ) to Windsor via Greyhound Buss Parcel Express ( or similar ).
Then you cross-over from Detroit to Windsor to pick them up.
The boxes and networks would get you going on making some high-output 1970's, rock & roll pounders.