Great idea Don. I would suggest you assign a value to the sugar daddy engine as an adjunct since most folks don't have opportunities to get good running engines gratis. Also, maybe emphasize what skills and time/tools you've used for certain operations that might not normally be in an inexperienced beginner's possession. Just to give an idea of not only the cost in dollars, but also tools, time, and talent. Those three areas are usually grossly underestimated by the inexperienced. Just one of the many areas I know you're familiar with as an example would be wiring. This will likely be one of the most basic systems imaginable, and you're experienced at doing wiring on a daily basis, and I'd bet you're still going to be in it more hours than the unknowing could imagine.

As for the multiple picture thing, you post the 2nd, 3rd, etc, the same way you did the first and they just accumulate in the single posting........nothing to it.