Welcome to the SOC, dajesters09, and congrats on your '78Sunline. Over a year-and-a-half ago, we bought a Sunline never having had any experience camping, RVing, towing, you name it. We learned a lot - and are still learning - from the great people on this site. We read a lot of the threads here and that really helped answer questions we had, in addition to the ones we asked.
One thing we learned is to write things down, especially when first learning. The PO gave us the complete Sunline manual but we quickly discovered that, while it had a lot of info in it, it did not have a lot of instructions. For example, the first time (or two) we tried to open the awning was a comedy routine. We finally went on-line, watched a video on the correct procedure, wrote it down, and put it in the manual. Until we really got the hang of it, that saved a lot of effort and frustration - and possible damage to the trailer. So, when in doubt, write it out!
Matthew and Lisa
TT: '02 T-2363;
TV: 2012 Ford F-150, 4x4/Off-road, 5.0L V8, "Big Gray"
Reese Straitline w/ dual cam