I'm trying to find alternate economic way to test performance of strain gauge circuit (attached below) over resolution below 1mV. So far, I have tested it for 1mV differential inputs at Instrumentation Amplifier's input with help of Freescale Kit DAC's output.DAC output was fed into inputs of INA ( Instrumentation Amplifier ) to check its performance at a high level.
There is possibility to install strain gauge adhesive without any glue?
Unlikely - strain gauges are incredibly sensitive, and if they're not mounted properly, you'll have no idea whether drift / errors are due to the strain gauge or your circuit. See Jim Williams comment, note 2, page 36 of AN43: https://www.analog.com/media/en/technical-documentation/application-notes/an43f.pdf