What Investment And How Much

I got this Idea some people after reading people in chicken farm, fish farms, verious crops, factories, and farming from 10 rai to 1500rai

wanted to post this in the farming section but thought better here hoping to attract many.

in short, what do you think the optimum investment with a good IRR is, for example in Jordan it was said that the most successful business is that is less than 100k USD and owned by 1-2 persons. as a personal business not a big company

so in case of Thailand, from all you guys that are running factories farms factories, and from experience.

would you mind mentioning or giving details about your projects as to give a better idea,

now ideally if the info supplied is unified is great like,

Activity, farming, factory, retail, ...etc

Size, land, number of housing if chicken farms, ponds if fish, hangar if factory

Initial Investment, did it grow

IRR

how many years in the business

and age

thanks in advance for all who wish to particpate.