RockAuto has the Moog ball joints listed at 47.79 each, and the outer tie rods are 36.99 each. So $159.66 not including shipping. We'll call it $200 total. So they are booking this job at 7 hours at your rate of $70/hr.
But hey, if you can't get it done yourself for the reasons you stated then you don't really have a choice. That price seems about right considering Dobbs wants to charge my buddy $900 or so to replace both front wheel bearings and do a front brake job.