"How hard" is hard to say because it's so much based on you vs. me. But, coming from 1000', I'd say it will be hard for you because of its length and altitude change.
It's a long way and high up, whether you take the Spraddle Creek or Red Canyon trails, with a healthy elevation gain at the end of each.
We used to go Spraddle but now go via Red Canyon. Mainly because then, at the end of the climb, we get to see the snow we will be skiing. Also because up Spraddle there is an elevation loss along the way that we don't like.
We plan about 5-6 hours for members of our group at a fair pace.