<RunTo X="6154.168" Y="2715.675" Z="573.9147" />
<CustomBehavior File="RunLikeHell" UseCTM="false" NumOfTimes="1" AllowCombat="false">
<Hotspot X="6190.968" Y="2740.23" Z="573.9145" />
<Hotspot X="6182.403" Y="2756.462" Z="573.9145" />
</CustomBehavior>
<RunTo X="6135.191" Y="2754.95" Z="573.9145" />
<CustomBehavior File="RunLikeHell" UseCTM="false" NumOfTimes="1" AllowCombat="false">
<Hotspot X="6103.162" Y="2722.128" Z="573.9145" />
<Hotspot X="6108.868" Y="2702.292" Z="573.9154" />
</CustomBehavior>
Less than 24hrs easily, probably less than 20hrs. Sorry to be vague but I used to have a spreadsheet showing times levelled for my toons with raf with/without heirlooms, unfortunately I don't have it any longer.
Bear in mind travel time for repairs over that 20+ hrs will mount up so I used to use a travellers mammoth mount to repair/vendor loot.