runestaff under practical enchanter rules

[you randomly]

i was looking through the practical enchanter saw the section on scribing and how you could set the caster level to 1 and the user would have to provide the spell power to fuel it and it reminded me of rune staffs but looking at it i can't work out how you would make a rune staff under the practical enchater rules

[you randomly]

found a solution sorry it's late but I'll post it here in case anyone else was wondering learned a lot about how practical enchanter works along the way and highly recommend checking it out.

things to know:

this is going to be a spell completion item for reasons that will be clear later so we'll need the scribing feat [page 138]
we need to take the scribing feat again so we can make or item bonded so they have to provide the spell power just like a rune staff (see told you it would be clear later)
practical enchanter lets us make multiple, and unlimited use spell completion items


i'll be using the runestaff of stone and earth as a base for both a template and comparison
runestaff of stone and earth:
move earth wiz/sor 6 3/day
passwall wiz/sor 5 3/day
market price 12,000gp

practical enchanter version:
crafting formula[page 106]
market price=(spell level x caster level) x 500* x 0.6**
*=unlimited use spell completion cost multiplier
**=only useable 3 times a day cost multiplier
***=see bonded
which means:
market price=(((6 x 1***) x 500) x 0.6) + (((5 x 1***) x 500) x 0.6) = 1650