Wow! I know nothing about okra seed, Lakngulf
Some things you can do with a lot of seed to remove the chaff (not very important for garden seed but an idea especially for dry beans and such):
There are often very flat baskets that you can find in the thrift stores; they were popular to hang on the wall several years ago and now, not so popular. They go for a couple of dollars. You do the "shift, shift, toss . . . shift, shift, toss . . ." It helps to have a slight breeze but it isn't necessary if you are good at this.
If you are like me and a little lame with the procedure
, you can set up a ladder close to a tarp spread on the ground. Wait for that slight breeze, place the container of seed on the paint holder, climb the ladder, and dump the seed slowly on the tarp. Then, gather the seed back into your container. How high you go on the ladder depends on the breeze. Repeat, repeat . . . oh, make sure of the wind direction before starting so as not to be sowing seed into the lawn grass
Just relating a little from experience watching Southeast Asians do this work.
We are each other's harvest; we are each other's business; we are each other's magnitude and bond. ~ Gwendolyn Brooks