Excellent - interesting project. Not sure if you are aware there is a prototype VHDL MK14 from daver over on vcfed which contains an approach to SC/MP but, it does have some bugs...
http://www.vcfed.org/forum/showthrea...958#post565958
I adapted it and got it running last year on my Spartan 3 dev board but, due to some illness put it aside. I have not seen the detailed timing you ask about. The Technical Description on Page A-2 (51 of the 67 in PDF) shows the time in Microcycles for each instruction type which is pretty good...
You can get that book and others from
https://www.curiousmarc.com/computin...microprocessor