The 3010 should be mounted so that the lense is centered and in line with the top of the screen when ceiling mounted. If your 8350 is already mounted in this location, replacing it with the 3010 should be a snap. I just replaced my HC 400 with a 3010 last week. Mounting holes line up and I only had to make minor adjustment to get the image to line up with the screen. I say put it up and see how it looks.
Epson Home Cinema 3010 Projector____Paradigm 9SE MK II Main LR
Yamaha RX-V667 AVR_______________Paradigm CC-270 V.3 Center
Emotiva UPA-5 Amplifier______________Dual Stereo Integrity 18" Infinite Baffle
Sony BDP-570 Blu Ray_______________DIY Sound Group Volt 10