If you don't have the skills to develop the game prototype yourself, you'll have to pay for other people to develop it, or have such an impressive portfolio that you attract people to work for free initially, with the promise of future profits.

Professionals usually get the job done, but you generally need to pay at least something up front, because their livelihood is tied to the work. Some developers may work initially for free, but if you don't promise anything concrete, you do run into the risk of losing them without notice; they are not obligated to work for you, because you are not obligated to pay for them.

Depending on which of these is your approach, you could post in "help wanted" (if seeking free help) or "classifieds" (if seeking professional help for a fee).

Finally, everyone has ideas. Even if you have the greatest game idea ever, it is the execution of the idea that matters.

I would greatly appreciate any advice on how to go about getting a prototype together.

you're going to need a coder. and an artist.

buy, or learn to do yourself, those are the basic choices.

if you choose to learn to do it yourself, you'll find lots of help here on gamedev.

half a dozen games out over the next 24 months

Your future holds difficulty.

Wer'e looking to put half a dozen games out over the next 24 months. Mostly crowdfunded. ( Kickstarter.)

Lmao, 2 years is very little time to spend on ONE game.

This sounds like a Chinese factory for games. They just pump them out, with no regards to quality. Not to say quality stuff doesn't come out of China

Lmao, 2 years is very little time to spend on ONE game.

Depends on the game. 6 in 24 months doesn't sound unreasonable for a skilled team.

Many small but high quality games, such as can be found on mobile devices or game console marketplaces, can be completed in a few months of total work effort. A team of 4 could realistically put out 6 high quality games in 24 months, releasing something every 4 calendar months.

Not very likely to happen though, considering he's got no money to pay freelancers, and has no people willing to commit.