Please, unless you've just received an absolutely large inheritance that you feel obligated to spend, you don't need 300 watts of power. Now, of course, if you're trying to drive super inefficient speakers or load an extremely large listening area with sound it may be prudent.
If not, find a McIntosh MC-275 of a more recent vintage and thank your lucky stars for not only how great it will sound, but for the bread you will save. Figure between 4,000-7,000 grand between used or new for HI-FI nirvana!