If your comfortable jumping with out an AAD for the time being you can find a good used rig for less than 2,500.
I got a used Javelin, sabre170, pd160r for 2,300, that had less than 100 jumps on the whole rig.
u just gota keep looking and hope you dont get knocked unconsious in freefall
you can alway add the AAD later when you save up some more $$.