How to mount heatercore/shroud/fans combo?

[n64man120]

I've got a modded 77' Bonneville heatercore, and going to build a 3/4" fan shroud out of some aluminum, and 2x120mm Yate Loons. I plan to mount this in the top 2 drive bays, with the fans exausting out the top through holes I will cut.

What do you guys do to hold everything together? Do you mount it to the top and let it hang, or mount the setup to the drive bays as well? I'm using a Lian-Li PC-7 so it's fairly light aluminum casing.

I'm mainly thinking about the heatercore, since it doesn't naturally have any mount points, so how should I go about doing all this?

[Psyche911]

Most people it seems put bolts through the rad, between fins. I'd prefer not to do it this way.

The other way would to be part of the shroud wrap around or in some way be connected to the heatercore so it holds the heatercore up. Then bolt the shroud to the case.