If you're going to buy an M1A, I'd get one with a wood stock. The wood it comes with is nice and that gives you a good looking rifle. USGI stocks are VERY inexpensive, so you can buy a "beater" stock for $10 or less. At the prices they are going for, I'd get a USGI wood and a USGI synthetic. I personally use the synthetic for most of my shooting, but woo dis nice as well. That gives you a good looking wood stock, and a field use stock. There's no good reason to go with the SA, Inc synthetic stock.
I'd get a GI barrel. Chrome lining says it all for field use. Also you don't need any extra weight some of the match barrels have. Also unless you do all sorts of match mods that take the gun out of the "field" category, you aren't really going to be abel to take advantage of the Match barrel.
Get what you like as far as trigger, sights, etc. I personally like the service, as issued variety for what your purpose is, but there's nothing wrong with getting what YOU like.
If you're going to be able to afford $1400-1500, you should be abel to find a good M1A with USGI parts. I wouldn't go with the current offering until you explore what it costs for one with USGI parts, and what it would cost to get one built for you. Build-up is probably the most expensive. I'd vote for a M1A with USGI parts being the best bet here.
Ross