I'm a student in High school planning on buying a K20 this year, but I'd also like to swap a Cummins in it. I don't have a lot of fabrication experience but I do have the people and resources to help me out. This will be my first truck and first swap. Since my budget is tight I thought of doing the 4BT first and then doing the 6bt down the road because it could easier, cheaper, etc. Or should I just do the 6bt? I really think doing the 4bt would be really helpful to get the experience and make the 6bt an easier swap. I don't plan on towing anything for a few years, but I will be hauling a lot of steel and stuff in the bed. Is there any suggestions or advice anyone can give me?