Wow 80 pounds sounded expensive until i spoke to my fiend Boris, Apparently we used pounds for weight too, up until 50 years ago. However and now being serious (something my fiend Boris struggles with) 36.4Kg is 10 Kg over the guidelines for safe manual lifting. In my old industry that was called transportable rather than portable.
On a serious note, would you not get the same or similar tone with a decent pre-amp, Say a Sansamp?