Love my a bolt, but if your buying an older 300 wsm you may want to pick up a good pachmayer pad. On my 325(which is about a year old) the one thats on there is great, the one on my 300 wsm(about 2 years old) was horrible, got a pachmayer, problem solved.
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.