You might add to that the cost of blueprinting or truing up the action. It would make no sense at all to put all that money into a factory rifle w/o truing everything up first.
Go ahead and do it once and do it correctly. In the end you'll be glad that you did.
Only problem you will find when your done with rebuilding your 30-06 is that you'll want to rebuild every other gun you own. Now that might cost more than you want to part with!