How do I plan TOC/TOD in an IFR flight plan that includes SIDs and STARs?
I'm not sure if there's a standard, 'correct' way to do this, but for planning purposes I'd just assume that your climb and descent aren't affected by the SID and STAR. Calculate them as if it were a VFR flight, in other words, based on the route you have.

The issue here is that you don't know what ATC is going to do. The SID says "maintain 2000 or assigned higher altitude" so it's possible that they just clear you directly to your cruising altitude. Or they might keep you lower for a while for traffic, or have you climb in multiple steps, or whatever. Unless you know the local ATC practices very well you can't plan accurately for that and even if you do know what altitude they assign 99% of the time, your flight might still end up in the 1% that gets other instructions. Ultimately, you have to deal with whatever ATC gives you.

It would be worth asking your instructor about this too. First, he may have a better answer than I do! Second, he may know what the local ATC procedures are in that area. And finally, since you mentioned a checkride he might have some insider knowledge on what the examiner expects or likes to see. However you end up planning it, you should be able to explain to the examiner how ATC's instructions might affect your time/fuel calculations.