<<<- As you can see from my profile on the left of this post<<My Choice is Obvious> .
I owned a Unique and they are great people who stand behind their product with pride, if you go the fiberglass route, I would go with Unique a great value all the way around. I personally had no "heat cracking"issue with mine which was over 8 years old.
As For
Kirkham - They too are great to work with and have a tremendous amount of pride in their craft, and most importantly they stand behind thier product long after the sale....a1010%. From the begining I always wanted an aluminum body car but was not in the right place( $$$ )to buy one at the time. I really think that you are comparing apples to oranges when you look at a Kirkham Vs anything else.
If you can get in on the current deal Kirkham is offering, I would seriously consider it, if you are considering aluminum body
What ever your choice, your going to have fun!

__________________
Jorgen Moller
Founder/Inventor
RaceDeck Garage Flooring
800-457-0174
All CC Members Get Discounts
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http://www.racedeck.com
Life Member of the Bonneville 200 mph Club
05' Ford GT- Retune , Pulley & Exhaust 650+hp
Superformance GT40 MK2
63.5 Falcon Sprint ' Voodoo Falcon' GT350R powered
93 Ford Escort RS Cosworth FIA Rally Car