There's a FAQ section in the first post towards the bottom. Its hard to see unless you scroll down.
The specs has some 'wiggle room' since on some gpus, the power connectors are on the side.
Yes, you should replace the fan. I don't own any of those fans but reading online, the performance is similar. Go with the cheaper one.
I'm assuming you'll be using a 2.5" drive. Any idea where you'll be mounting it?
I added the ix-03 to the list.
<div class="post-sig post-sig-limit shazam usersig-click"><div class="reparse-sig-lineheight"><div style="text-align:center;"><a href="https://www.overclock.net/t/1300645/usff-sff-club">The Official <span style="font-size:9px;">uSFF</span>/<span style="font-size:10px;">SFF</span> Club</a></div><span></span><br><span>GeForce2 MX 64 < FX 5200 128 < Mobility Radeon 9700 64 < 8400M GS 128 < 9800GT 512 < GTX 460 1 < 650Ti Boost 2 < 650TI Boost SLI 2 > 650Ti Boost 2 < GTX 1070 8</span><br><br><span>rma amount of times: (# of times rma-ed/product failed after warranty period/products owned)</span><br><span>Antec AIO: 2/0/1 | Corsiar AIO: 1/0/2 | Corsair ddr2 sodimm ram: 2/0/2 | Adata ddr2 ram: 2/2/4 | Adata SSD: 2/0/1</span><br><span>WD Black: 1/0/2 | WD Green: 1/1/3 | SilverStone SFX PSU: 2/0/4 | MSI gpu: 1/1/2</span><br><br><span>Products I am avoiding: Sandforce Controller based SSD | TLC nand flash SSD | Asetek | Anything that has season passes</span></div></div>