Hello! If you want a cheap motherboard for your i5-6500, I suggest you getting a H110(M) motherboard, these support the new 6th gen CPUs (such as that i5), and are pretty cheap (around 75 euro here in Belgium). For the RAM, just get a 2133Hz 2x4GB kit, or just a 1x8GB kit, I recommend that last one, if you choose that you'll have room for an upgrade in the future, and it'll probably be cheaper (around 35 euros here). Make sure you buy desktop and not laptop RAM (http://www.bing.com/images/search?q=laptop+ram+vs+desktop+ram&view=detailv2&adlt=strict&id=03E2A7298D2B59629E49FBCA475A44E35143B120&selectedIndex=0&ccid=%2fUgMWvdE&simid=608025073682481311&thid=OIP.Mfd480c5af744103545b63c6753f5214eo0&ajaxhist=0)
Good luck!