Just put the head back on and turbo it. These A-engines last a long time. Remember next time to make a compression check before dissasembling, often they don't need fixing.

You probably don't need to replace the bearings, they rarely go bad. Buy some Plastigage from the store and measure the clearance. If it's right on spec and the bearings look good, don't bother to replace them.

Likely the least expensive parts will be http://rockauto.com. However if you have Shuck's or Grand Auto or Kragen nearby, it may be more handy to print out the prices from their web site (http://www.partsamerica.com) and they usually match them.