125-200cc Adding a kickstand tab

I would like to add a tab to my son's 2004 cr125.

I am not a welder but I know one!

I saw on at least one rebuild here that people have done this. Any info on what I need to tell the welder I take it to would be great.
i.e. steel type, hole size etc.

thanks

your best bet would be to have someone with a WR type measure, photograph and give this to your welder, if you have a local dealer got there to copy one
you will need a kickstand and spring too
not sure on the exact metal but most likely cromolly they used to be 4130 as I recall but not sure on the newer ones

PM'd you.