For my first 10 years in a hardboot setup, i used a set of 29.5 burton reactors, followed up by a set of 30.0 burton furnaces. Both boots I found at a tremendous deal, and I didnt really care that i swam in them...especially since it's all I could find at the time here in MN, and I refused to use ski boots. Gotta love extra socks! Keep in mind, I use a 28.0 Head boot now. My point is this, even using huge boots, like the 30.0 furnace, I was able to set up my Factory Primes, all with a 18cm waist, with little to no toe/heel hang. Yea, I rode 69 degrees front and back, but it still worked. I prefered the high angles. However, given the current sources for hardbooters, you should be able to find something used, or new, depending on budget to fit you riding needs. I'm now living by the philosophy that WIDER is better. My Donek has a 23.5cm waist, and my angles are down to 52 front and rear. I have a Burton Factory Prime 7.3, w a 18cm waist w Burton race plates mounted and ready for some big boots. If interested, let me know. Its just sitting in my board case, as i have no use for it anymore. If money is not an issue, get a DONEK, some TD2's and a good boot.
~Holla