When all major components are specified it is possible to calculate the price. Here is a list:
Power supply, 36V 350W, Meanwell S-320-48 or similar. $30 for “similar”
Cree CXA2520 45W LED modules, 9x$10 = $90
Meanwell LDD-1000H 1A 52Vout max. LED driver. 9x$5 = $45
36V conversion 12V 1.5A...