Raj, you are overthinking this, that's why I said using the same mounting points, no drilling required, and to a proper fabricator with the right equipment, no problem in fabbing something that small to bolt on yourself.
Weight issue, well is there really one ? With partial coverage or complete, sure there is some extra weight involved, but not so that it drags your mighty 200 to the ground.
Several of us on here have bought purpose made underbody guards/shields for our 120's that cover most parts or all, because standard were rotted out or useless, Karl, Juddian and myself amongst them with no issues.
There are other members with different series that have different types fitted.
Only you can decide if you really 'need' extra modifications, and not be swayed by what other people's toys and working vehicles look like, and unless you are being run over, you don't even see these, except for maintenance.
Don't worry about it mate, just do what's best for you (and your pocket).
No one thinks any less of you because you haven't got the same kit or look as others.