>>2902364I dont have an autoguider and I struggle to go over 120 seconds (I have an EQ5). I often have to do the polar alignment several times to be precise enough. Autoguiding is definitely the next thing I'll buy. (but it makes everything more complicated: guide scope, laptop etc)
Your 130mm with a single-axis motor should give you access to some of the brighter deep sky objects (M42 and stuff like this), but after trying this you will probably want to buy a better mount. If you have some spare money just buy an EQ5 with GoTo, it will give you access to a lot of new objects to shoot.