I'm in similar situation living at about 700'.
I always drive out west on hunts and take my time. You are gradually going uphill the entire trip west, spend first night somewhere mid way at a couple thousand feet, then next night pretty near your destination at 5-6000' or greater, then one more night at or near the hunting location before getting into anything strenuous. No booze and about double the water you would normally drink. If you're not peeing regular and peeing clear, you're not drinking enough, min. 1/2 oz water for every pound of body weight daily, more is better.
Easing into it slow like that and continuing to drink lots of water has worked for me. By second or third day at altitude, I'm ready for some big boy drinks and feel pretty normal.
Flying straight to a high altitude destination with no time to acclimate is a good way to get pretty sick. Watched a buddy go through this and we had to get him back down to lower elevation.