Thanks Kurt
I'll check them out for scale this weekend, that Krait series is pretty cool, and would be perfect if it were a bit bigger, but I may be able to figure something out.
The Boomslang and Adder may work for the largest bay. Is the Boomslang for Space or atmosphere?
The third bay doesn't necessarily need to be a bomber bay, it just seemed to make sense at the time to name it that.
Thanks again man, if I go with them I'll send you $40 this weekend. EDIT: Going with the Adder for the type II bay
Edit:I figured some stuff out..
The Adder is 35ft x 17ft (exactly) and the Boomslang is 37.75ft x 11.6 ft (Width and Height, going by the images and the 6 ft scale bars Canis provided on the images)
The Heavy Fighter Bay (Type II Bay) is 35.53 Ft x 25.84 feet.
In other words, the Adder can fit in it

(though very tightly) but then I can easily add another 6 inches to either side of the bay without having to change the main image as each pixel is 3.23 feet as there's no way to depict anything smaller then that, I can simply change the written dimensions of the bay by a foot and it wont change the image at all.
So The Adder could be my Heavy Fighter

Remember these are launch tubes as well (like the viper bay tubes)
Would need something much larger for the third bay then the Boomslang for the third (Type III bay tubes) other wise there would be a lot of wasted space (for a launch tube anyway)
The third bay (Type III) is 54.91ft x 38.76ft in size. Again with slight fidgeting as mentioned above, basically 55ft x 39ft.. Any ideas on something that size?
EDIT: I have all the ships

I had to increase the Type III bay by two pixels (and had to update all type III bays on my ship, not fun) I went with Kurt's Roc.
I'm modifying all the ships (Viper, Adder and Roc) to all be similar to one another, same paint job, all same/similar engines, layouts to reflect there roll etc.. I'll post them when I'm done.
Kurt PM me your paypal as you found my Bay type II ship (Your Adder) so I owe you $20 as promised and thanks again man for always being so helpful!!!