Thinking of a used/old planter

[hobbyfrmr]

So, if spacing along the row isn't vital, or depth, why not save the money and just plug some runs on your existing seeder and accomplish the same thing for free?

Depth control and on row packing.
Hemp likes to be planted shallow so I usually broadcast on front of Bourgault airseeder while cultivating. Planting too deep is a disaster for hemp.
I have been thinking about something like technotill and plugged runs.
I have always been curious about planters but never been around them so I am looking for opinions about them.