Piggy Backing Altair Astro ED 72

[Astrith]

I would like to piggy back the above scope onto my 150P Star Discovery . Initially used as a guide scope , then attach a Lodestar camera for widefield imaging . I would like to use the 150P with an eyepiece attached  for visual .  I assume I would need to invest in some guide scope rings .

The 150P is attached with Skywatcher rings to an NEQ6 mount . Before I make an outlay for  guide scope rings , is this , a workable option and are there any other  better set ups . Any suggestions ?  .......Many thanks for reading........Alan 

[Astrith]

Bumping it up.