Tulip, Emperor, and Persian Jar are all fantastic designs, but the pricing of these models is really for collectors, and not aligned with workhorses like the Duke, X2L. Some of those fancier ones only come in Super and up, and I think OP will probably be happier with Best.+1! Great brushes (I have both the T2 and T3). Another good option would be Simpsons 50 series.
A bespoke brush with the 2 band knot of your choice would be cheaper, too. You could even crack open a Semogue badger brush to get one of the Finest knots for less. Perhaps cracking a Semogue would also be cheaper than Shavemac knots.