Not symmetrical, no simpler than any other 6/4 plasmat, and not particularly good close up.
The OP asked an unanswerable question and ran away. Unanswerable because without knowing the range of magnifications he wants to work at we can't know how much coverage is needed. He didn't even say why he wanted a 180.
There you go; salty.
I forget where I read this, but I recall that these old Symmars are good for copy work; a poor man's process lens. That's why I thought it may perhaps be good for marcro.