Stellarvue will give you the finder and guidescope option you desire.
See
https://www.stellarvue.com/f50/
Get the F50 RACI finder and non rotating helical focuser and your set.
'and' get a Telrad not 'or' and your set as they complement each other.
Note you need to get rings and a mounting foot/base for any Stellarvue finder. Note too the Stellarvue eyepiece can be replaced with any 1.25" eyepiece. I typically use a 19mm Panoptic or 16mm Nagler on my F80M for a slightly higher power and still get 4 deg. highly corrected field. The finder is f3.75 so it's tough on wide field eyepieces unless the eyepieces are highly corrected themselves. Typically this is not a concern for a standard finder eyepiece. The 23mm eyepiece supplied by Stellarvue works fine and the cross hair can be illuminated if you desire. I prefer no illumination and don't miss the cross hair when using the Panoptic or Nagler.