Thanks all. I'm currently using a PC (Win 10 laptop) for this application though any platform could be an option in future (e.g. I have several RasPi's at hand). Just wanting to get up and running in short order and check mount operation. I used Stellarium about 10 years ago. I guess it has improved since then. Due to backyard conditions my plan for next year is a ROR obsy and moving toward imaging, with longer term software integration/automation for roof, sky conditions, etc.. Thanks for the tip about fake IC's. I'm OK with basic DIY electronics and competent with software. I'll be sure to call if I need help, which might be more around getting the mount performing to its best after the rebuild.?
