I want porcelain veneers fitted, can i pay monthly?

i want to pay monthly from a direct debit for 8 porcelain veneers. im only 17, 18 in september, so i havent got alot of money. im in full time education and work full time in mcdonalds (dont ask how i do it). i would like to know how much i should expect to per month for my dental veneers?