auto pilot for 86 sun legende 41

[wellcontrol]

I'll be shopping for an auto pilot system for a new to me Sun Legende 41.  I would like to know who's using what on similar era boats.  Just spent a couple weeks on a 2017 SO 479 in FLA had the complete raymarine suite.  I didn't catch the model and I assume the competition has their features and benefits.  But, this is an old boat / but a good boat,  I want to keep it simple but strong/durable. I'll be installingas the original didn't come with it.