The less you carry the easier it is to bike, the more you carry the more comfortable you are when you camp. I spent almost 6 months hiking (174 nights) and we bike camp as well. I am in my late 60's and I want a good night's sleep. I use Big Agnes Air Core Sleeping pads because they are thick, but very light and as a company their warranty and customer service is incredible. Their new pads come with a stuff sack that also acts as an air pump.
I also like to have everything inside my tent if possible and do not want to be rolling into the sides of a wet tent in the rain. I analyzed 30 different tents before my hike and went with the lightest tent per square inch in floor and vestibule space. You can cook in the rain under your vestibule with the right stove set up - not advised in bear country. That being said, I use a two man tent for solo camping and a three man tent when I camp with my wife. The two man worked okay for the two of us, but was a little too cozy. Again, Big Agnes won out here. I have a Seedhouse SL-2 and camped over 100 nights on the trail, the tent is over 10 years old and still going strong. I also bought a three person Big Agnes Copper Spur HV-SL for the two of us.
I use down bags and invested in a Feathered Friends 30 degree after my hike, because the REI sub-kilo was a total waste. Again, comfort matters. You are looking for length, but for me shoulder width in a tapered bag is the most important. A mummy bag saves weight, but I upgraded to one with a wider shoulder width. The REI bag was too narrow in the shoulders and I froze below 40 and I am a "hot" sleeper. I also use a bag liner as well - easy to wash and keeps the stench out of your bag.
I like to eat well also, so I opted for a Jet Boil but carried the group cooking pot for a lot more options. You have to pick what fits your budget but I would read a lot of reviews and invest in quality and comfort. I have not weighed my stuff recently I usually look at weight at the time of purchase on a per item basis. For a long trip, pack, repack, go on a short trip, repack and trim down, another trip and a repack, and you will almost be ready.