A fair compensation for adding Cyrillic set to other designer's typeface

My friend asked me if I would be interested to add a Cyrillic set to one of his existing typefaces.

We agreed that the set should be "classic Cyrillic" covering 8 most used languages:
А В Е К М Н О Р С Т Х Ј П Џ Ц Ш Щ Ж Ъ Ы Ь Б Њ Л
Љ Г И У Ф Д Ч Ћ Ђ Я Э Ю З Й Ё Ў І Ї Ѓ Ќ Ѕ Є Ґ Ү Ө

а в е к м н о р с т х ј п џ ц ш щ ж ъ ы ь б њ л
љ г и у ф д ч ћ ђ я э ю з й ё ў і ї ѓ ќ ѕ є ґ ү ө

We will pick sans-serif typeface, uprights only (no italics for now), and probably something with two masters. I guess that it makes sense to pick a best-seller typeface since Cyrillic is already a limited audience.

But we don't know how to compensate each other for this work. How this is usually done, percents, or one-time payment, how much?

Also, is it a good idea to sell Cyrillic only font version (without Latin glyphs in it) so the people who want Cyrillic don't have to pay "pro price". Since the set is smaller they might get it even cheaper than the default, what do you think?

What other things we might want to consider here, thanks!

Comments

  • I personally can't offer much insight into pricing here, but I can tell you that excluding Latin will typically cripple usage (and separate language versions is confusing). Especially for Cyrillic, because one place it's not a "limited audience" is for European Union typesetting, where it's required...