It's going to be similar to the swap in a squarebody, except yours should have an ECM.
https://ck5.com/forums/threads/how-...-suburbab-v1500-4x4-gas-with-a-350-v8.323752/. Since the diesel was offered in 95 you'll be able to use all factory parts. Since you have donor trucks you should be able to spot all the differences as you're pulling the engines. Keep the harness with the engine. You'll want to use the torque converter for a diesel. Look at the radiators. The diesel one may be bigger. Again, having donor trucks greatly simplifies this project.
What gear ratio does this 95 have?