Hope you're planning on using a montage of marriages to "cover" the timeskip if you're planning it for 0.23, because I sorta feel trying to cram them all in 0.21 and 0.22 when the MC hasn't even finished proposing to all the girls would definitely feel rushed, and I'm not sure MC/Sandra in particular waiting 7 more months (I think?) to make it official post time skip really fits them. A montage would also let you feel like there's some time progressing to prepare for each one to make each ones special/unique, without having to make a bunch of actual days with filler between them.