It's also a little simpler and maybe less intimidating, but functions quite well. And this too I recommend starting while you make the mirror. Having the tube and mount almost complete also allows star testing as soon as possible, if desired. The secondary spider, focuser, etc can all be made in advance, once the mirror diameter is chosen. Since they affect balance and that affects the rocker part of the mount, it's better to wait on the side boards until you have a good idea of the tube balance with everything installed.
Fast scopes are good for deep space views, becuase of wide field of view and their light cone.
I never found melting it difficult or even remotely dangerous, but as a kid the books had me scared for a long time. Just don't walk off while it cooking and don't cook on high so that it boils or over an open flame. Use electric and a coffee can and relax. Aluminizing is the standard way to coat glass mirrors now. Very few attempt to silver, since it tarnishes quickly and easily.