Don, If you have to buy all new components, MSD might just be the way to go, but this is not a cheap set up when you can use a modified HEI system. I have the entire MSD arrangement on my car, from the small diameter billet distributor, the 6A box (I'm never going to need the 6AL for racing), the coil and for my VDO gauges, a special box for the tach. My wires are Taylor instead of the MSD as I believe they are the same and I needed a universal set which MSD didn't have at that time. How much do I have in this arrangement:

Distributor = $285
Steel Gear for roller cam = $50
6A Box = $175
Blaster 2 Coil= $45
Tach box = $60
Taylor Wires = $60
(some of these have gone {way} up in price lately)

This is how I "hid" the box: