Browsing the tuner forum, I see a number of people use the Sencore SG-165. I assume that replaces a few of the items on your list. I looked all of those up on e-bay, and it would likely cost me about $2,000 to get all that gear used. So, just thinking about what is the most cost effective way to acquire the needed gear. Looks like the SG-165 can be had for around $350. As I said, I can borrow a scope that goes to 110 MHz for the dial alignment, etc.
I have a Sencore SG-165, I never use it.
Yes, at a pinch they can do everything, all in one, but here's the rub.
Almost every 165 when you buy it, will have a broken frequency dial shaft, the load resistors are almost always burned out, they do not have BNC connectors which means you have to change to those to use it with an oscilloscope.
They do not have a great deal of accuracy, especially the RF signal generator. They also have their own way of pulling a visual IF alignment image from the tuner which doesn't work with some tuners. There are much better ways to do IF alignment, which is why you really need a Distortion analyser.
I have used it once or twice, and to be honest found it a but lacklustre and frustrating.
But it might be a good way for you to get into it and get the idea of alignment.......
Be aware though that you wont really find the Sansui SM much good using the sencore, you'll have to use the sencore manual for alignment, which as I said, may or may not work with some Sansui tuners...
You don't need a 100+ MHZ scope for alignment, you can use a 20mhz scope as you are only looking at the audio output
Very disappointing since this was was driving distance for me, and my in-laws live near his location. Are these tuners really that difficult to work on or are techs just taking low hanging fruit? It's particularly strange as they are a factory authorized McIntosh repair shop. He said 97% of their business is McIntosh repair. So are Sansui tuners that much more complicated than McIntosh? 
