m: I agree with Grey. Haven't seen anyone yet who can shoot a couple of pounds of spine or grains of weight difference.
It's just about impossible to provide what you want. Depending on changes in humidity and initial shaft grain strtucture/tightness, unsealed shaft phiysical weights can change by 5-10 grains in a day. The spine can also change a pound or two. So regardless of what the supplier sends you, they may not be the same by the time they get to you.
I've often measured the same shafts several times over the course of a couple weeks, and very seldom got the same results on spine or weight. I weigh and spine all my shafts and write the info on them. Sometimes it's a year or more before I actually make arrows out of them. Upon weighing again, very few retain their original spine and weight. The changes aren't great, but they're there. Most spine testers just aren't that accurate. Digital grain scales are, but, as I said, humidity changes will change the weight and to a lesser extent the spine of unsealed shafts.