Table of Contents:

02 Illustration by 星矢 俊
03 ToC with two illustrations by Jun (probably 金子 順) and Akaishizawa Takashi (赤石沢貴士)
04-20 Key Animation drawings
21 Illustration by ?
22-32 Storyboard extracts (cut 51-58+?+270-273)
33 Illustration by 金子 順 (?? Jun) dated 84.12.5
34-39 Story by ひがきあきこ (Higaki Akiko?)
40/41 Illustration by 赤石沢貴士 (Akaishizawa Takashi)
42-62 Production drawings
63 Illustration by ?
64 Advertising for upcoming doujin releases (another A-ko doujin in spring 1985?)
65 Comments (not much about the anime itself apparently) and Okuzuke (発行所 W・I・C 発行人 森島 篤)

Akaishizawa Takashi (赤石沢貴士) is the TAKASHI who is in the official Pop Chaser credits

Contrary to popular belief, there is nowhere a hint that Project A-ko was considered to be included in the Cream Lemon series.

The two projects evolved in parallel into the same production company (Shoei Shinsha) and Project A-ko was considered as an adult animation in the beginning. Apart from that and the fact that some animators worked on both A-ko and Pop Chaser, there is nothing between the two as far as I can tell. Of course you can consider Pop Chaser as a derivate work while A-ko was still on production (exactly at the time of this doujin).

This doujin was made in December 1984 around the time of C27.
There are two other early Project A-ko doujins existing, one made before (previous comiket so in August 1984) and one after (in Spring 1985, just before they switched to a general public movie production?).

Special thanks to Gravitoncity for sharing this gem :)

Base +64