Looks like you have done some research, welcome to the boards!! As a newbie, I'm sure reading all the threads could be confusing. As for your post, you stated that cycle was a classic.. and it is for bulking.
The reason why people say to stay off deca as a first cycle choice is because it has many sides you need to watch for and be prepared for. Yes, all aas has sides, but some have more then others so most will say to stick to one compound for a first cycle to help you out so you can see what if any sides you get from that.
This way should you go on to another cycle you will know what to look for. You have taken the right step, and thats to come to the boards and research and build a foundation to learn on. I know of many people who find a dealer, buy and go on based on what their supplier says is G2G.
Looking at your diet, it looks like you understand how to eat thats a good start. the first three things that need to be solid are EATING/RESTING/TRAINING what does your training look like?
but going back to your initial question about the cycle, on cycle treatment could change depending on the compounds you plan on doing. Have you looked over threads having PCT protocols for the types of aas you are planning on taking? I'm sure thats where you're getting confused as some work best for certain compounds then others.
What have you read about estrogen? or rebounding, or keeping down bloating? If the only compounds you have are SUS/DECA/DBOL and that's what you are going to do the bro's here on the board will suggest you only take the sus and possible dbol because of the deca sides, I have done that cycle (deca/sus/dbol) and it was a great mass builder and my strength went up.
I did get sides fairly quickly but I also know others who took that and had no issues at all. Maybe the other bro's can help you plan your on cycle treatment based on their experience same with pct.
look into
N2GUARD
UNLEASHED
SUSTAINED ALPHA
HCGENERATE
PROV
ADEX
Look into all this and more, come up with an outline based on your over all research and I'm sure others will critique to help you get the best out of your first cycle...Your receptors are very open to AAS and you will grow, its just being able to handle the sides dealing with them and having the best protocol to keep what you put on.
Welcome to the boards
Fisty