Seems like a good price to me.

I'd shoot them.  .308 Win and .30-06 Spfld cab use the exact same bullets.  What weight any particular rifle prefers is the determinant.

For powder, it depends on what powder and how many grains you intend to use per round.

Example - 45.0 grains of IMR 4895 is a mid-range load per Hodgdon.

That equates to 155.56 loads per pound (assuming no spillage, and exact volume every shell).

25.7 pounds, so, you'd need to buy 26.

Pick a different powder, a different quantity per shell, and do the math.

7000/(grains per load) = loads per pound

4000/(loads per pound) = amount of powder needed
___________________

Just out of curiosity, do you already have that much brass, or will you be reloading as you shoot what you already have?

Two cautions before you jump in whole hog on this:

1.  Watch foe bedan primed brass, it's a decapping pin killer.

2.  Match your powder to your primers, some powders prefer magnum, some standard.

I'd say those bullets are good, buuuut... I don't think that guy is in business anymore.  I am pretty sure that I came across the same page a couple of years ago and although the phone rang, no one ever picked up.  I see the page was last updated 2005 which adds to my suspicions.

I did get a bunch of pulled 308 Israeli 147 grain machine gun bullets once, and they have worked well for me.  Probably not match grade or anything, but certainly seem fine for blasting use and 3-gun matches.  The Brassman (brassmanbrass.com) had them the last time I bought components for I want to say about 15 cents each.  I load them up for my 308s and also shoot them in my M1.