The '65 Galaxies 390 will get pulled to fix the rear main seal and leaking dipstick. Might consider a cam/lifter change while it's out also.
The '70 F350, with the 390 that I got off of Blair, will get some carb work, but ultimately will get pulled to put in a 445 stroker that I put together for better pulling power. Then the BP 390 will likely get put in the Galaxie and I'll just shelf the engine that's in it now.
As for the Mustang, it'll get ran through the Reunion, then get pulled so I can do some major changes to the car. The biggest being a hole cut in the hood to clear the carburetors for the replacement engine. Not sure what I'll do with the all iron 427 sideoiler then. Guess I'll have to "find" something to put it in after a refresh and some new bearings.