I was only expressing my opinion...and I'm truly sorry for your health problems...many of the folks here have health problems as well, and many are on fixed/limited incomes as well.
That was my thought, and only mine. I'm not a skinner. I don't represent anyone's thoughts but my own, and that, frequently, with minimal success.
Perhaps you should find avedesk (free) which can convert bmp-->png by just dragging and dropping....if that helps?
BTW, what's the website going to be about/for?
I noticed in THIS POST a similar request, smaller number of icons (12) requested....your goals for this "website" seem to have grown.
Care to share?