[Question] Going rate of money making alts

As title says.

I'm interested in the price it'd cost for a purchase of the following alt accounts.

Gargoyle alt: 70 atk,str,def, 75 slayer
Rune dragons alt: 90+ atk str def, ds2 completed
Wyvern alt: 75+ range, 72 slayer, elemental workshop 1

Please provide prices at the minimum stats required. Thanks all!