Letter of recommendation 4 needed (500 words approx per LOR)

I need 4 LOR 2 academic 2 corporate.
Words 500 X 4 = 2000 i.e., 500 / LOR needed

I can pay 1600

Please only bid if you have previous LOR writing experience. Majorly Technical computer science knowledge is a must.

If your work speakes I can additional 400 as a bonus.