I bought a retired rental sod cutter for $800 and love it!
What has worked well for me is to cut 4 strips about 3" thick and have in order: pile of the 4 strips flipped over, cut planting area, cut walking area, cut planting area
The 4 strip pile can still grow potatoes the first year.
The planting area should be pretty grass free.
The walking path can be weeded with the same sod cutter on 1.5" depth, especially if there are some wood chips on it.