cooch366 wroteSo based on what's been posted so far, is the opinion that for $370-$470 it would be worth getting a new power pro head, and keep the old one to "customize" into another stand alone unit?
I think each of us has to consider our own particular situation and decide for ourselves.
Getting all new parts has its advantages and would be a good choice for one more a tune to using rather than fixing. That also leaves one with a backup or potentially another unit.
Those more mechanically inclined would probably go for the DIY upgrade and have the 'spare' parts for possible use elsewhere.
All that ignores the $ factor which is just as important.
In short, the answer lies within thee!;)