[NTG-context] Conversion LaTeX -> ConTeXt

Hello there, I am starting to move away from LaTeX to ConTeXt and was wondering if some ConTeXt users have written scripts to convert LaTeX documents to ConTeXt documents. Or perhaps just partial conversions, for example from a LaTeX tabular environment to a ConTeXt table. Also I would be interested in layout definitions which could replace the LaTeX article and NTG brief layout, as a starting point for further customization. Best Regards, Frank Sonnemans