Sequential Ciruits Prophet 5 Vintage Synthersizer !

Sequential Ciruits Prophet 5 Vintage Synthersizer, Latest 3.3 Rev. Medium conditon One key does not trigger,and two metal (guitar tytpe) Knobs are missing.It works perfectly other than that,and has a Maplins Power supply as its 115v.Can be seen,tested e.t.c. Pick up only. Its not post able.