A while ago I had it all listed like this on gumtree in an attempt to move the gear together. Obviously with no bites I'll have to adjust my expectations:

Amp $2000
Guitars $500 each

Amp + 1 guitar $2450
Amp + 2 guitars $2850

Head + cab retails for over $3500.
Both guitars came close to $1000 each after getting the case and the pick up upgrade, so I figured $500 each was reasonable.