2d plans (4 of them) and then convert the same to 3d walkthrough.

Hi , i need three separate designs done. 3 small ones and 1 large one...........first you will take instruction from my designs (done and scanned to you roughly), then you shall convert these to good quality 2d birds eye view drawings using any computer package such as photoshop or any other software. then you shall begin converting them into 3d , finally providing a 3d walkthrough animation. TOTAL PRICE IS $150 for the total job...........take it or leave it. more work will follow once i have your trust