guys, have my new AMD floor pan in on my 78 monte. What's best way to align/measure where to weld in bucket seat brackets to new floor? The brace going across pan I traced on sides so I know where that lines up, it's the brackets to seats I'm unsure of. How have you done this? Also, the pan itself although i trimmed to fit and line up in rear to the edge of seat hump, from below, the pan bottom is slightly below outer edge to edge of pinch welds, that seem correct? Thanks,