Not sure how to help, mate. Just wanted to say that feeding to sleep is probably the quickest and easiest way to get him there!
Does he wake when you put him down? I've heard people suggest warming their bed with a wheat pack then removing it just before putting bubs down. Makes the transition easier. Is he wrapped?
Hang in there! I'm really nervous thinking about doing the newborn thing again when I'll have a 2yo at the same time! I think you're doing a champion job!