“MISO by Mårten Nettelbladt is a heavy duty typeface for the construction industry*.”
Free font for all your architypes. Nice compact font for annotations etc. But it might be a bit too condensed for typical body text.
Yes, I am a fan of fonts it has to be said and I am usually against script fonts but having your own handwriting in a font does seem appealing. I will hopefully be making my own illegible font tomorrow!
Update:

I have tried to create a font and it is not pretty, maybe I will try bitfontmaker instead.
Create your own fonts.