Pro Elite XT3500 Cam´s Change

[Daniel AR]

Friends.
I need some technical advice.
I amin South America ,and not a lot of compound tech´s with real expertice in this area.
I have a newProelite 2007 ,XT3500 .I ordered it with Cam&1/2 ,but it came from factory with C2 fixed draw 30".

This is my first new Target bow .

MY draw length is more near 31,or 31.5.

Could you pls be so kind ,and give me some info ,on which are the right cam´s (model and part numbers) I need ,to have a adjustable draw length in between 29.5 and 32 .
(I am thinking in the Cam&1/2 ,and also am in the way to define my real draw length ,thru testing diff setups.)

Also I will need help with the strings and cables sizes ,and where can I buy all these parts ,in the US ,with a reasonable delivery time .

Thanks in advance for the help.
Dany.