249gram fpv wing

Could a foamcore wing with Fpv be built that is 239g with batt and FPV gear, like the RMRC mini swift wing? http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=112_675&products_id=4086 I downloaded the versa plans and found foamcore on sale at michales for 1$, then saw the...