Sorry if I was confusing. I didn't mean to be. Let me try again.
As pointed out by me and others since my first attempt. There are several companies that make lift kits which include springs, shocks and new brake hoses. All of which are required to do a lift safely. However, they can be costly. But, they are the get everything you want solution to your question.
Everything else is a product for the front and another product for the rear. Some work good together and some don't. ORD is one company that makes several different options for both front and rear. DIY4x is another.
I suggested you find the wheels and tires you want to run first because the solid front axle Chevy trucks were built with a very wide tolerance when it came to component locations. Many of us consider it to be sloppy building. Whatever you call it. The front axle could be perfectly centered in the fender opening on both sides or it could be front or back of center. Each side could be different even. This could be from the factory or it could be from worn out or damaged parts.
The passenger front fender metal closest to the cab is where you are most likely to have the tire contact the fender when turning to the right. Each combination of wheels and tires will be different due to back spacing and tire design. If you get the wheels and tires you want first, put them on and see if they contact. Then you will know if you even have to do a lift of any kind. If they don't contact, leave it stock.
They most likely will with 315 tires though. How much lift will you need? That was also a question you asked. With the wheels and tires you want to run mounted on the truck. Measure from the center of the bumper to a concrete surface on the ground. Start lifting the frame up until the tires clear and measure again. This new measurement minus your original measurement is the minimum amount of lift you will need.
All of the above is dealing with the front axle. The rear will clear 315 tires no problem. However, you want the truck level so it will also have to be raised. While holding the front of the truck where it needs to be, do the same with the rear. Get that measurement and then check to make sure your front is still high enough. That should get you started.
Or, you could just cut the fenders some. Front and rear openings of both front fenders will allow 315 tires to clear without a lift of any kind. You wrote you didn't want to do that so I only mention it as a last resort option.
Hopefully, that is easier to understand.
