I have a maxed obby with b ring (i) done, I can do it this weekend. IDK what your level target is for mage, but you can have lvl 67 mage/ranged max at 99 strength without leveling up combat. It will be very tedious as I will need to block using 2 more accounts with membership. Also very slow since I will have to quest family crest and kill chronozon with blast spells only. Going down this path will probably cost 45m (hand done w/2 of my accounts blocking). Or if you don't have level caps in mind for ranged/mage I can get it done for 10m, but that's going to ruin your combat level.