buddy has one in good shape and complete what would be a fair price for both of us?

With so few having been manufactured there is not an adequate number of comparative sales to establish a good data base!  Condition, condition, condition!  The more user friendly the caliber the better.  Over the last 18 months the few I have seen for sale have been priced from $4,500 to $7,500.  None of these were 85% or better.  A #7 in this grade would have an unknown price potential in an auction house like Julia.