Fwiw, I've never taken a block to a machine shop and them not suggest boring out the cylinders. That's how they make money. And boring them out means you'll be buying new pistons. You can get a quick idea of cylinder wear by looking at how much of a "ring" you have at the top. Other than that, you'll need a bore gauge to measure for out-of-round.
There are a bunch of intake choices that are good. I believe the TrickFlow was the best flowing, although the Edelbrock wasn't far behind. I'm currently running an explorer intake and it seems to make decent power. I'm getting ready to swap over a gt40 cobra intake I just traded for. Iirc, the cobra intake is just a hair better in flow numbers. I doubt I'll see a real difference at all, but I like the looks of it. Here's a good article comparing a few intakes.
http://www.mustangandfords.com/how-to/engine/173-0101-super/ There are others, but this is a good start. If you're wanting more than the explorer/gt40 intakes, but not wanting to spend money on Trickflow or Edelbrock, then you might check out Late Model Restoration. I think they still sell a knock-off of the edelbrock performer intake. Last I checked, the used explorer intakes were going for around $150, used cobra gt40 intakes around $300, used gt40 tubular intakes for around $600, new edelbrock and Trickflow intakes for $6-750 range, and the Edelbrock performer knock-offs for around $350.
As for a cam, I would suggest figuring out everything first and then contacting one of the cam companies. Have your engine/car specs in front of you...compression ratio, displacement, heads, transmission, torque converter specs (if auto), rear end gear. They will either find you a good off-the-shelf cam that suits your needs or they can custom grind you a cam. Either way, it's well worth the money to have a cam selected with all of your specs in mind. I had a B303 Ford Racing cam sitting around that I pulled from my 82gt a couple yrs ago. I wish I had spent a little money and picked a good cam. If I ever tear that motor apart, you better believe she's getting a new one!