"I've recently become fascinated by Sextants, Astrolabes, Nocturnes and other similar instruments; Astrolabes in particular. I'd like to find, or make one."
The book "Latitude Hooks and Azimuth Rings: How to Build and Use 18 Traditional Navigational Tools" has some very interesting plans for inexpensive antique navigation instruments - really cheap to build and don't require a whole lot of building skills. The Astrolabe in there is pretty good, and they all are pretty accurate. It's on Amazon for less than $20; check out the "Look Inside" feature for all the instruments and required tools. I've used it often over the years; it still holds up, in my opinion.
I use Stellarium on a laptop and I wasn't aware of a charge for a mobile version. I believe that there are free mobile versions of Stellarium; check SourceForge. I use "Mobile Observatory" on my Nexus 7 at the 'scope; it was worth the $6 to me, but I still use Stellarium when planning my night's viewing.
The "Husky" joke was good; I have over a 100 trees on the property and no interest in really cutting them down, but it does get frustrating at times on really good viewing nights; I have a small sky window to the south and one to the east so I have to tie my observations to the seasons. The street lights, though...