Camshaft and crankshaft bearings

Whats up, I was the one who binged watched all 9 videos of the LS series in 1 day and I commented. Great work. Anyways. I have a 2003 5.3 LS1 Gen 3 I am rebuilding with 222,000 miles to put in my truck listed above with 333,000 miles. Pulled the cam to swap out with another one (nephew said it is a "bump stick") and the bearings are shot. So I will pull crank and I need to get cam and crank bearings. I checked out summit racing since they hooked you up and there are multiple styles of bearings ranging from $70.00 ish to $200.00 ish. The only difference I could tell (don't know much about this stuff) is just what they are made from. Do you have any recommendations or should I just call them and ask them? I know you had the machine shop install your cam bearings, but I have not been able to find a shop and 1 I did also wanted to do other things to the block totaling around $800.00. Do you recommend I have them go through the block and cam and clean everything? Trying not to spend over $1,500.00 for everything. Got the engine for free and just bought about $300.00 in parts, trying to use everything existing I can. Still need to buy the cam tool unless I can find a machine shop.
Thanks for your time.