More Sex Worker On White Photographs?

I did a series of sex worker on white backgrounds portraits in the years 2007 and 2009, I have been thinking lately that it might be time to photograph another 25 people. I need to cut some corners and save enough money to buy film so that sometime in 2012 I can return to Thailand and add more photos to this series. 8x10 Tri-x is expensive $65 for a 10 sheet box, I would need probably 400 - 500 sheets so that's like $3250.00 plus taxes.

If I make more of these photos in 2012 I want to concentrate more on the workers from the gogo bars (both men and women). I would also like to continue to photograph people from years past if I can find them and also more ladyboy workers.

I need to start buying film little by little as I have the money and build up my 8x10 film stock for 2012 or 2013.