Thank you for your reply. I did more research and found a much nicer presentation with excellent information on the history and uses of Bio Char. Here are the two videos if you would like to see them:
The build seems easier and more achievable. I am not so concerned with finding the common 55 gallon drum after reading peoples advise, but the smaller inner barrel could be tough here in Thailand. If anybody happens on this thread and has seen them for sale please let me know.
I project my way forward as:
1/ Buy a chipper and create lots of mulch to help build my soils.
2/ Make biochar and inoculate with EM solution.
3/ Spread liberally on my mulched grow areas.
4/ Build up the richness of my soil and swing the soil more towards 6.2 (most is in the high 5’s at the moment) with lime etc…
My learning curve here is harder and action is much slower. Like walking in syrup. With language and my location being challenging.
Any input or ideas are always welcome.