I use leg warmers sometimes at home but on tour prefer to take either wind pants (just a light shell like a wind breaker) or tights (with no chamois) or both depending on the conditions.

I most often only wear either of them in camp unless below freezing. I typically ride with just shorts until it gets pretty cold. I did the ST in winter and used one or the other more there that usual, but still was in bare legs most of the time.

For your tour it sounds like you are sagged so you could take tights, wind or rain pants, and leg warmers and not suffer with the weight. Pick the one you want for the day and leave the rest in the sag wagon. BTW, if you wear the tights over your shorts it isn't that hard to take them off when it warms up. They are really no worse than leg warmers in that regard. Where leg warmers are nice is if you are often switching back and forth over and over again with needing or not needing them. So you can get too warm on a climb and just slip them down around your ankles without stopping to finish the climb and pull them back up for the descent, again without stopping if you want. As I said I just ride with cold legs until it is REALLY cold.