It doesnt cost money to finish Conquest.
As you've clearly replied to my previous post- that early finish cost me nothing. No rage, just as advised to OP I check out the various people I mentioned for tips.
There is a pretty easy and unfrustrating formula to Conquest:
1. Run through to the end 3* everything and get your disks. If you can do some feats along the way great.
2. Now you'll have a clear picture as to what feats etc you need to get your desired box- which means you can ignore a chunk of the ones that might be difficult for you.
3. Once thats done, focus on the feats you can do- ideally doing feats on the Datacron nodes, or in some case the boss ones as you'll need the longer timer to complete the feats that can be done in 1 battle.
4. Spend the last week of conquest autoing the Datacron nodes.
Now please stop with the wallet nonsense- its not true and more than a bit cretinous.