Heaven forbid someone would elect to conduct research regarding scuba diving by simply coming to ScubaBoard and asking their question? She's a witch! Burn 'er! Burn 'er! She turned me into a newt!
Fast and cheap COULD have a negative connotation. Or it could simply mean "the most efficient use of time and money to achieve the desired outcome." And again I ask, does anyone here think the OP is asking how to become a worthless, crappy tech instructor? Shall we always just assume that that's what people mean when they ask for the shortest and least expensive way to get to a certain level of diving (or instructorship)? I mean, I know that's how it almost always has gone here, but must we continue that?