Why bother man? You either shoot the wedding with what you got & call it a day or invest in some glass...

I love using the 24-70 and my 70-200 but neither of those you have, I'm sure its out of budget for you so heres a simple fix.

Buy a 50 1.8 & use the glass that you have...Buy a flash, work with what you have rather then what you don't have.

The amount of time your wasting posting in this thread look on youtube for tips how to bang out the wedding....Don't waste your time asking for what lenses to use because you can have all the best glass in the world and still take shitty photos and screw it all up...

Learn the basics & learn fast! Look on youtube & look on the web for basic wedding tips and I'd say start brushing up on your composition of framing; quickly!