Mark, there is a ton of suppliers out there now. I think you will find there are a few vendors making parts for a lot of suppliers. I have been using Kaiser Willys almost exclusively. Their price is usually very close. If it is not the cheapest, I have had to investigate the quality of the "cheaper" suppliers. I have found that KW's quality is always premium. Their customer service has been phenomenal.
On your brake lines, get the most complete kit you can find. Having the clamps and sleeves and the hardware is nice.
But they look so nice right before they rust!