Congrats on the ld!

I think the point of the 'sight' part of the cycle is simply to notice, i.e. be aware of the sight in front of the eyes, rather than strongly actually focusing them to see. If possible, try to do what you normally do with your eyes when falling asleep, but attach some awareness to it.

Apart from that, I think it's ok to use a modified version of the exercise. Looking forward to reading about you doing 2 sense cycling and the results. By the way, I often use a single sense when falling asleep or wilding - touch, ie. focus solely on my body. That is enough of an anchor for me and I also find it quite pleasant.