Where can I buy coins, at what price ?
You can use BTC or DOGE at the present time on this exchange..
https://ex4ange.org/?ISO-BTCIsotopeC can be mined very easily and the wallet includes a miner. Directions are above for both mining with the wallet and the stand-alone version for full customization and dedication of a system. There are several exchanges that I've talked to recently and I'm sure more will be offering trade, buys and swap pairs.