Planter Help

This is my first post here so please forgive me if I'm in the wrong area with this question.
I bought an old IH planter a while back that had been modified to be a one row planter. From the research I have done I am fairly sure it is an IH 186 with the hill drop unit and the disk opener.
I'm basing this from messicks (sp.??) and other parts catalogs I've found.
I'm having trouble figuring out what plates to use to plant different things. I've used it to plant corn with the one plate that came with it and it did very well. Spacing was about perfect and had almost no skips at all. However I know this plate will over plant small seeds like okra.
What I'm wanting to plant is okra but not finding any suggestions on plates. I was thinking that sorghum plates might give me something to start with but not sure.
Also, from looking at the Lustran plates it seems the numbers on the plates indicate seed size and maybe distance between holes in the plates. Anyone see any resemblance in that?
I'm not planning on planting commercially so probably can't get much help fro seed suppliers.
Any suggestions as to where to start would be awesome. I know it could be somewhat of a trail and error thing but a starting point would be great. Thanks in advance.

Contact Lincoln Ag. Not all okra may be the same size, but Lincoln Ag's Lustran C-SORG-13-60 would be pretty close. C= IH, 13=13/64ths Cell Size and 60= Number of cells. Another hill spacing option would be the C-SORG-13-30.

http://www.lincolnagproducts.com/index.html

Kent

Cell size is measured by width of cell, length of cell and depth of cell and that is the thickness of the plate. There is no measurement of distance between cells. Plates are normally either 16 or 24 cell but for specilaty crops you can be anyware from 2 cells per plate up to 64 cells per plate. The 24 cell lets you drive a bit faster than a 16 cell to get same population as it will only turn at 2/3 the speed of the 16 cell to give a better fill. Now I do not have any idea what okra is so have no idea on size of seed or type of seed or seed spacing. On some of the very small seed there is a filler plate that goes under the planter plate as for then just a plain plate could not be made thin enough. Also for some crops instead of cells the plates will have a round hole listed by diameter and thickness.

Please call me at 320-468-6474, Kevin I am MN