Just need a little peace of mind.

[Rusty Trichome]

Well I flushed 2 weeks ago with 1 gallon that had a ph of a bout 6 (using the liquid test) cant afford a electric tester.

Proper ph range is between 6.3 and 6.8 for peat based mediums.

I had some MG in their at about half concentration, but i figured with all that water most of it would just flush right out anyway.

Quit 'figurin' and start following directions.

How much are compact CFL's

Check online, or Walmart has 'em for cheap. Get the correct bulbs for the job.

and my biggest question is when should i expect to harvest.

Jump that hurdle if/when you reach it. Take care of 'em now, and likely you can have a decent result. If all you are going to do is starve them and mistreat 'em, may as well harvest now. They won't improve much without proper care.

The top has very dense hairs that are covered in calyx's

The calyx holds the gamete, whech becomes the embryo (seed) once pollinated. Sticking out of the calyx are a couple of sticky tubes called pistils. (hairs) They catch the pollen, and deliver it to the gamete inside the calyx. They are often damaged by weather and handling, but are replaced by fresh ones.

Do you know what the trichomes are and how to determine plant maturity using them as an indicator?

Yield at this point would be disappointing to say the least. You've got all this time and effort into 'em already...take care of what you've got, and that disappointment might dissipate. Right now, likely your meds will taste like freshly mown grass.