Hey, Jonce. 

We are traveling in an 84 (Suby 2.5). 

I've got Yakima bars with a basket and a rocket box, and bikes and other gear hanging on both ends. 

With such a big profile, the extra power (which I'm assuming is similar between the conversions) disappears when it gets windy, say 25-30 and up. 
Calm is not really an issue, but 4 hard shell boats angled or stacked is an even higher profile than I'm running. 
I do know that wind works my van hard enough that I am avoiding traveling when it is blowing. 

Yakima and Malone are two that I know of that market "micro-trailers" that are pretty versatile looking, for boats and maybe a dry box. I may try one next year, or price parts to build one (friends have done so for light trailers). 

Have fun with those boats!

Kevin

> On Mar 9, 2014, at 4:44 PM, Dave Mcneely <mcneely4@COX.NET> wrote:
> 
> Jonce, I've seen top racks with high bars.  The boats are laid in on their sides, and strapped.    Of course, it will kill your gas mileage (maybe more than a trailer would), and you'll have to watch for low clearance.  mcneely
> 
> ---- Jonce Fancher <streetbugs@FRONTIER.COM> wrote:
>> Hi all
>> 
>> Well, This past Xmas the family got kayaks to take when Camping.
>> My camper is of course a 85 Vanagon with Zetec.
>> 
>> Now the issue is how to drag or mount or transport 4 Kayaks, Kayak
>> Gear as well as camping needs??
>> 
>> Trailer might be the only way to get it done but do not want a ultra
>> heavy thing.
>> 
>> Anyone out there with recommendations and or ideas??
>> 
>> Thanks Jonce
> 
> --
> David McNeely