Get the Orion 120ST OTA for your WA companion scope .With a 2" diagonal and a
BW Optik 30mm 80° AFOV eyepiece you will get a 4° FOV. On my Apex 127 I use a
21mm Pentax XL , 25mm,26mm,32mm and 40mm Plossl's if I want a wider FOV.

Joe