The reward per block will be 1050 DAPS. The blocktime is one minute. Those 1050 DAPS are distributed to the network in this ratio:
50 for the development fund
900 for the masternode and staking pool
100 for PoA Miner that audits the block
Masternodes and Staking is one pool, because there is also another ration in this group. This is called the "see saw system". At the beginning the masternode pool will receive 60% and the staking pool 40% of those 900 coins. Depending on the amount of other participant in those pools you will receive your interest. Later the ratio for masternodes and staking will change and the masternode pool will receive 40% and the staking pool 60%. It will happen in a floating way.
The collateral for one masternode is 1'000'000 DAPS.
At the moment you have to buy ERC-20 Tokens until the main-net has been released. You will also need Coins for Staking and Masternodes.
Hopefully I could help a bit, for more information I recommend the whitepaper otherwise this comment will be a bit too long. ^^
Best wishes,
fennestral