1970 C10 Laying Frame with Trailing Arms and mounting my bags

[C10_ForDad]

Hi guys, so I picked up a frame to work on and get all cleaned and prepped to swap my cab and drivetrain over too. I figured on the front end I'll go with a Porterbuilt Stage 3 so I can lay frame. For the rear I can't really afford to go 4 link or with the Stage 3 from Porterbuilt. I was thinking of just running a bigger notch to clear the trailing arms or notching the frame where they contact. Does anyone have pictures of that? And I was also looking at where to mount my bags. I see tons of rides with them moved forward on the trailing arms, I don't mind doing that either but I also see KP has a set of mounts that's weld onto the rear end. Would that be more beneficial to have my bags inboard and on the axle?