SIDI Spark/size15 cycling shoe

Well. Its that time again- I think I need a new pair of cycling shoes. I’ve had the Sidi Dynamic 3s for about 4 years now, from just starting cycling, to where i am now- i’d say they have 5000+miles on them- and got pretty beat up on the walk through the train station when i bike commuted.
Anyone have Sidi Sparks?
I’m cheap, and i wear a size 15. I found a pair of dynamics for about 90$ a few years back- and picked them up. Now the cheapest shoe Sidi makes is in the 140$ range.
Sidi is (as far as i know) the only company that makes size 50- without going custom
anyone use the sparks? 2 straps vs the zephyr’s 3… the dynamic has 2 straps- its all i know, its all im used to. i doubt that it would affect me too much.
anyone else who wears a 15 have any better ideas?