Garry, the pipes look great. At first I thought WTF
but after sitting looking at the photos over my morning Machiato and Tim Tam they finally grew on me. Seeing that you're building the bike as a desert sled I reckon the ace shocks to use would be a pair of Curnutts. These shocks were the hot set up for desert racers in the early to mid seventies, hardly a bike was seen in the Mojave without them. Although they're a bit on the obscure side here in OZ they often turn up on imported bikes so someone might have a set laying around. Parts are still available for them and there's a bloke on Marks Swapmeet that offers a rebuild service. Another good period shock popular with desert racers is Arnaco. Arnaco's still come up on eBay from time to time, I've got a few sets myself, including the set that Walter rebuilt on my Cheney. Curnutt are still in business producing mountain bike shocks (
as is Fox Shox)Both Curnutts and Arnacos are very advanced for their time with Curnutts being very similar internally to Works Performance and Arnacos having a stacked shim design and external dampening adjustment (
that actually works) 20 years before Ohlins and the other biggies. Out of curiosity, what length shocks are you needing? I'll have a squiz through my shock stash and see what I may have.
What tank are you going to use? I've got a very cool fibreglass aftermarket Husky desert tank I can sell you for less than it cost me just to get it out of the shed. I've also got an alloy Hi-Point 2 gallon tank that'll suit but it's a bit more expensive and knowing you're on a budget it mightn't fit into the concept.
Arnaco 
Curnutt 
Desert Tank...slightly different to mine but similar with the clear fuel "gauge". Mine's more like the shape of a DT1 but lots bigger. 
Here's a couple of very cool CL350 Street trackers............
http://www.pipeburn.com/home/2012/10/2/studio-motors-honda-cl350-no27.html http://theselvedgeyard.wordpress.com/2011/12/12/the-epic-bike-build-goes-to-glory-the-girl-with-the-dragon-tattoo/
