For a larger project, consider buying from Alibaba. ~5 years ago I built a series of workbenches using 20 series and even with the shipping from China costs, I

For a larger project, consider buying from Alibaba. ~5 years ago I built a series of workbenches using 20 series and even with the shipping from China costs, I saved 2-3x over buying from the maker places. IIRC, final total was around $700.