Bench to Bucket Conversion Advice

I bought on ebay 5/6 plastic body plugs here is link measure to make sure my memory is in tack:

Mopar 5/8" Flush Mount Body Plugs- Fits 5/8" Hole- 1-1/32" Dia- 20 plugs- #054 | eBay

No need to order and wait a week or so when most auto parts places stock these 'menial' items. I got 1-inch and 7/8" flush-mounts from my local Lordco and only about 23 cents each.