Let say i have 1000000 gold. and my total cost for my equipment is 43,954 gold. Is that enough to feed my cavalry class?
And if i am going to reach level 31 how much money will i lose in the long run and how much would i got left ? 
If you are unlucky you pay for repair costs every round. With that high costs its likely you will. You pay 7% of the total cost for the items, that means if you use an armor for 16k, and it gets damaged and needs repair, you gonna pay 1120 for it. A round usually ends after like 5 minutes which means you get 5*50 Gold during that round on x1, which is 250 gold. So if you would have to repair any item, you would lose gold. With equip that is expensive like that, you will lose gold every round. Even with x5 it will be hard to keep up with the repair costs, because you wont have x5 all the time.
If you are in generation 1, you get 1000 xp per tick with 1x, and you need ~ 8,8 million exp in total for lvl 31, which means with 1x you will need 8800 minutes, which is 146 hours. Depending on your x, depending how often you get x2, x3, x4 or even x5 instead of x1, the time will decrease. The more exp you gain, the less often you have to pay for repair costs during your generation of course.
It surely depends on luck, how often you have to pay repair costs and for how many items. But with that item set up, you will lose your money very quickly I guess but however I dont think you would have to spend an amount near to a million gold for one generation.
edit: my post is more in theory, I never wore that expensive gear so better listen to WarLord. However these were my thoughts about it.
