nice work man! yeah shooting weddings you got to deal with low light environment every time. i don't actually agree that tele lense is not suitable for wedding. for me telelense is one of the must have lense for weddings, for indoor and outdoor shoot. the lense will be very useful and will make capture beautiful candids and potraits. a super wide angle is one of the must have too for weddings. i would say you will need:

+ wide angle
+ tele
+ 50mm
+powderful flash

50mm very useful for detail shots also for low light u can go as low as 2.2 or 2.0 anything lower the bokeh is over already. i like to use 50mm for shooting hantarans or flowers,wedding gouns and potraits. 80mm you will be father but having the 1.4mm it wont really help is you wont be using the 1.4 too much.

great to see another wedding photographer in the forum man!another good thing is ur on the other side of the world