Can someone tell me how long it will take me to solo mine a PPC block at 450 MH/s and what is the mining reward per PPC block...? I have searched for answers on both of these and can't find any clear answers anywhere. Thank you in advance.

current difficulty is 9809.3 so according to the calculator @

http://allchains.info/calc.html it would take approximately 26 hours on average to find a block.

You'd also have to wait for 520 confirmations

Yes, this works. Just replace PPC difficulty in the BTC calculator. This will give you approx time to mine a block.

If you want to get an idea of what a POW block is worth, just use PPCexplore.org and look at the last few POW blocks minted. This will give a general idea of what a POW block is worth in the general range of current difficulty.

The exact formula : mint = 9999 / (difficulty ** 0.25)