Sidi Rex's vs Astars Supertech R's

I'm debating between these two boots for someone with a wider foot who rides mostly street.. I've seen that some say the rex's fit too narrow and others say that fit wider. I found a pair of rex's online in size 45 for $273 while the cheapest I could find the supertech's were $422 which I'd probably get in size 44. My feet are 28cm which looks to be correct according to the size chart. I currently own sedici chicanes in size 45 that fit a tad loose, a hand-me down pair of gaerne boots in size 44.5 that are too tight around my pinky toe. And a pair of Dainese Torque 3's in size 45 that are way too long, going to be returning these. Any other recommendations would be appreciated.