Here is the cost breakdown for you Idea...
Using MML 0.49.9
Cost Calculations For New Aero
------------------------------
Cockpit 200,000
Life Support 50,000
Sensors 200,000
Structure 500,000
Flight Systems 26,000
Engine 8,000,000
Fuel Tanks 1,300
Armor 300,000
Heat Sinks 20,000
4 Gauss Rifle 1,200,000
1 Targeting Computer 100,000
8 Gauss Rifle Ammo [Clan] 160,000
CASE 50,000
CASE 50,000
CASE 50,000
Weight Multiplier x 1.5
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Total Cost: 16,360,950
Can make it a little over 20mil if it is an Omni