Lunchbucket is right on, if you spread 1 ton per acre, and then kick the soil, you cannot even see where you limed AT ALL. Lime is extremely heavy, and will look as though someone sprinkled baby powder on the field after the application. While the reccommendation of 4 ton/acre max is a common one cited, this is usually in refernece to applying once the feild is worked. In other words, if you spread 3 tons/acre, then plow and disc, you could apply another 3 ton and disk again, then plant. It will still take time to work, but it can be applied more than 4 tons/acre in this manner.

$25/ton is a great price. Take advantage of it, you'll be glad you did.

I'm with LB on the clover/alfafa though, do not even try to plant it this fall, go with a cereal grain. The problem is that you might be lucky enough to get a "spotty plot" of clover, then its difficult to decide on whether or not to plow it under and start again. At best, you will get a mediocre plot of clover. LB always says "do not be in a hurry to fail", in your case, he's right on the money. Wait until next spring or fall to try a clover or alfafa plot.