There are 1-2 other guys (Bruno was here too with GP3 but seems busy this year) but only Ricardo seems to have time and will to do the job.
And you're right, modding full tracks is a huge task and our tools are not so quite handy for now to accelerate the job enough...i work on it of course.
That's why we have to say: "Thank you Ricardo very much for all those new exiting tracks up-to-date to the 2003 season !"
)