What's an 30 HP 85+ mage pure worth?

Stats:
30 att
30 str
30 hp
40 range
85+ mage (up to 90)
1 def
1 prayer
Totally unquested

Additional context:
I mostly deal with rare name trades but part of rare name trading is transferring names which requires bonding the account for membership.

I hate to see the accounts go to waste since they get membership for 2 weeks and I don't want to bot (I don't want jagex's eyes on my IP since I trade high amounts of GP for rare names) so I just get them 30 att (for smoke staff) and 40 range (for -65 mage def) and use a method to splash the accounts indefinitely without botting (until 6h log).
This normally gets me to around 85 mage before they run out of membership.

Anybody know how much an account like this might go for?