Ehm,depends on what your looking for theirs three types of multi spaced ones..like
For example: (E________P) Would be rare.
Example two: (Con___air) would be decent.
Example three: (epic__ness) Would be RARE
For paypal i would say about 45.00.
Geepees maybe about ehhh 4-7M
[Resources]
http://runescape-rare.com/?multi-spaced-names,31 [Should Help]

