easy?! HA! This was probably a crap load harder than making something out of wood and fiberglass...lol
Really, it's just extremely time consuming and tedius. Unlike with wood, if you're short on your measurements with steel, you have to start all over...with wood you can at least screw on some additional pieces and keep going.
There's also some technique to get the putty right to smooth it out.
Grinding down the welds afterwords is also VERY time consuming. If you've never worked with steel before, or worked on something of this nature as in fabriaction, I don't recomend starting off with this suff....
