The public land I hunt takes a long time to get to, and even longer to get to where you want to go. I found myself in that situation earlier this year.
Here's my logic, based on experience: 1) Forget seeing a deer for the duration that you will be setting up / climbing. 2) Add 30 minutes or so for the commotion that you WILL make.
If your hunt is at least an hour longer than 1 + 2, and IF it puts you at any advantage, go in and climb. Most of the deer I've seen this year have been after I made noise getting into and out of the stand. If your careful, you shouldn't disturb much outside the immediate area, and deer move ALL DAY.