I think you have some good points, Krystal! A fan in the room to circulate air and breastfeeding also help reduce SIDS risk, and so does a pacifier. So with those measures in place there would be even less reason to worry about the risks. I try not to parent based on fear, too, but this is such a hard issue for me! Dylan also spits up quite a bit and it usually comes through his nose, poor guy, and he turns into a sputtering mess, especially when he is on his back. The issue is obviously avoided if on his belly.
I need to do more thinking on this..... I highly, highly value quality sleep (where baby is in a motionless environment and enters a deep sleep cycle) and if a baby is getting better quality sleep on his belly I think that is so important developmentally.
Ollie sleeps on his belly or side exclusively. None of my kids would ever sleep on their backs, and honestly, I don't even think it's good for their development. I mean, a baby on his belly will wake and the random arm/leg movements he makes will naturally evolve into crawling very quickly. Kittens and horses don't sleep on their backs, soft organs exposed, essentially helpless like an upturned beetle, right? Also, while I know there's risks no matter what position baby sleeps in, I personally feel like the ones associated with back-sleeping are more pressing. Plus, belly sleepers often burp more easily and with less assistance, so it's good for babes with gas/reflux issues.
Ollie sleeps in his moses basket during the day (either on his belly or side), which is never any further than a few feet away from wherever I am. We don't have anything else to put him down in like a swing or bouncer, so I'm glad he likes the basket!
At night, we either both fall asleep on our sides after side-lying nursing (I prop his head up on my arm, and kind of cradle him there)--or I have to sit/slouch while cradle-holding him so he's semi-upright. The latter position allows me to scoot to where I'm laying down again without really disturbing him, and then he sleeps lying across my chest/belly. I also sometimes sleep chest-to-chest with me on my back.
For the first week or so I was just sleeping anywhere and everywhere I could--half-reclined on the couch, sitting up in bed, etc. It was awful!