I think i'm going to keep it simple this year, and if I need to adjust it, ill deal with it next year.
I opted to pick up some 3/8" plywood for strength. Cut out the same shape, just an inch wider on each side.
I dropped the motor back in to check the clearance of the oil pan. It's going to be a tight fit!
Firs coat of paint
Pretty much the final fitment. Still minor adjustments to be made and the rear mounting points to be fabbed up. Also have Brake duct holes to cut out on each side.