To do the holding pattern or not?
Yes, you have to fly the hold.
If you're cleared for the approach, but you're not getting vectors to the final (or one of the other things you mentioned), the approach begins at the Initial Approach Fix (in this case, TFD) and you need to fly the full procedure, which will include the hold.

No, the missed approach point is 1,743 MSL (It's 7.5 DME for a localizer approach)
This is an ILS approach, so you go missed when you arrive at decision altitude and don't have one of the three required elements to descend further:

Visibility
Safe descent to landing
At least one of the required runway environment elements in sight

If you're shooting it as a localizer approach, you go missed when you cross the localizer and the needle flips. at 7.5 DME, a maneuver which is badly illustrated on this chart.  Thanks TomMcW!