Being a High Output MC the SAE at 2.5mV can go straight into your MM input. Mine does. Spec here: http://www.jims-sae-site.com/sae_phono.htm

The 33 is a different matter, as you rightly conclude.

You can go with a SUT or a Headamp. I've used a Rothwell Headspace Moving Coil Headamp to great effect (I still have it). http://www.rothwellaudioproducts.co....c_headamp.html

The great benefit here is that you can change the Gain and Impedance settings inside via dip switches, so you're not tied to a single cartridge. I'm not the greatest authority on SUT's but most are built with a particular set of parameters in mind and may restrict future cartridge choices.

The argument of SUT vs Headamp is well aired. You can find a lot on AOS regarding the subject using the search function.