🚀 go-pugleaf

I could use some advice.  I need more of the MOP than is present in the 
MACL 2.0 release, and find that the MACL 1.3.2 release doesn't run in my 
environment.

First, how badly will I regret attempting to get PCL working in MACL 2.0?  
I've made an innocent stab, making some easy changes in some LOW.LISP 
code and in some DEFSETF's, but have bumped into changes in environment 
representations that bother the walker code.  Am I wandering into a swamp 
here?

Second, if the answer is yes, then what LISP and what machine would you 
suggest I get myself to run a LISP with a strong MOP - either one that comes 
with the LISP, or PCL.  (Money is not exactly no object here, but I don't want 
to spend unreasonable amounts either.  The less I have to think about the 
machine, the better.).

   ...Tom M