The PoW rewards are way to high... this coin will see 500 sats from miners dumping before you'll your 5000 sats. Either reduce the PoW rewards greatly, or be prepared for some massive early dumping from miners. Look at ViaCoin for example
Block 0 = 0 VIA
Block 1 = 10,000,000 VIA (to be distributed by presale)
Blocks 2-10001 = 0 VIA
Blocks 10002-20801 = 10 VIA
Blocks 20802-31601 = 7 VIA
Blocks 31602-42401 = 6 VIA
Blocks 42402-5256000 = 5 VIA
Blocks 5256001-10512000 = 4 VIA
Blocks 10512001-15768000 = 3 VIA
Blocks 15768001-21024000 = 2 VIA
Blocks 21024001-26280000 = 1 VIA
Blocks 26280001-31536000 = 0.5 VIA
for a coin supply this high, the block rewards were extremely low to maintain standard economics... supply/demand, and the price did amazing things after launch. Reduce the supply for ganja, or expect a supply way too high for demand and a massive dump.