A Yakima roof rack on a TD ? How do I ...

... mount them ? The permanent universal truck cap/camper shell side mount, which will then use the basic/old school raingutter "towers".
or
The question is, do I just wait till the very end of the build and drill straight through the side or top and use some large fastners ? ( wich will them look ugly, AND conduct heat / cold / mousture/ condesation. )
... or is there a sneak-ier methond.
I plan on transporting a couple of mt. bikes and/or a couple of small white water boats ( kayaks ) ... maybe a ski/snowboard box. Not all at the same time.
Sorry, if thiis has already been discussed and is the dreaded "repost".
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or

The question is, do I just wait till the very end of the build and drill straight through the side or top and use some large fastners ? ( wich will them look ugly, AND conduct heat / cold / mousture/ condesation. )
... or is there a sneak-ier methond.
I plan on transporting a couple of mt. bikes and/or a couple of small white water boats ( kayaks ) ... maybe a ski/snowboard box. Not all at the same time.

Sorry, if thiis has already been discussed and is the dreaded "repost".
.
.
.