I'm considering purchasing an used contractor/portable style table saw that can be permanently setup for producing 1/2" finger joints. I make quite a few drawers and like the way finger joints look but dislike having to set up my cabinet saw.

Questions:

1) I know not all brands can accept a dado stack. Brands to avoid/look for?

2) I'll alter or make a new dedicated sled, so the quality of the fence will be unimportant. Agreed?

3) HP? Will I have trouble with insufficient horsepower with the dado stack on?

4) Will an 8" stack fit or should I expect to purchase a new 6" stack?

Thanks for your thoughts.