Just had mine done - took 2 hours in total.
1. Remove engine top covers.
2. Move injectors out way.
3. Undo intake manifold - 2 pieces.
4. Can now access starter.
The bolts holding the thing on go through backwards, the heads are against rear of bay, so you need a crowfoot wrench with balljoint extension or what not.
Do not let anyone charge you over $250 for this very basic job.
Edit: I note you posted this months ago - did you fix it?