Given that most used F2Bs I've seen recently have gone for around $600 and you can get a new one from Will Gunn for a nice discount off the $1675 list price the TWO MORE TUBES, UPGRADING OF THE CIRCUIT, AND ADDITION OF BRIGHT AND MID-BOOST SWITCHES added by Pete Cornish would be costing the buyer a minimum of $2,600. Those are some expensive mods regardless of the background of the person doing the work.