Both Kraft and Perez have died in the last year, but Marvel just released a collected edition of all the Man-Wolf stories, including the 7 issues that Kraft and Perez did together.

It's a nice collection, I like it and I'm glad I picked it up, but to be honest I still prefer to read the issues in their original form. It also made me aware of a number of other Man-Wolf appearances I wasn't aware of before I purchased the book.

MAN-WOLF: THE COMPLETE COLLECTION
https://www.mycomicshop.com/search?TID=49462790


For your reading pleasure :

CREATURES ON THE LOOSE 33-37
https://viewcomiconline.com/creatures-on-the-loose-33/

and concluded in:
MARVEL PREMIERE 45-46
https://viewcomiconline.com/marvel-premiere-045/

Plus a lot of other guest appearances in titles like AMAZING SPIDER-MAN, MARVEL TWO IN ONE, MARVEL TEAM UP and so forth, by other writers and artists.

In this series, Perez's first issue looks a lot like Rich Buckler, and that's because before he broke in at Marvel in late 1974, he worked as Rich Buckler's assistant.
Perez's story "War Toy" in UNKNOWN WORLDS OF SCIENCE FICTION magazine 2 (1975) also looks a lot like Buckler. But Perez developed his own distinctive style very quickly after turning pro.
https://viewcomiconline.com/unknown-worlds-of-science-fiction-issue-2/
Also reprinted in MARVEL PREVIEW 20 (the first BIZARRE ADVENTURES issue) Winter 1980.
https://viewcomiconline.com/marvel-preview-issue-20/