Checksum / Reproducible Build expectations

I've added Luci into the selected packages for my WNDR4700 target per @hnyman's suggestion.
Now I get small file size minor differences except for initramfs-kernel. Should I be concerned?

The relative file sizes are: Lede Official Downloads dir vs. MyBuild (reported by 'ls -s')
initramfs-kernel.bin 3649k vs. 5128k
squashfs-factory.img 6144k vs. 6148k
kernel.dtb 128k vs. 128k
squashfs-Sysupgrade.tar 4630k vs. 4620k

Before running 'make menuconfig', my .config file looked like:
CONFIG_TARGET_apm821xx=y
CONFIG_TARGET_apm821xx_nand=y
CONFIG_TARGET_apm821xx_nand_DEVICE_WNDR4700=y
CONFIG_PACKAGE_luci=y

After running menuconfig, the extra dependencies had added the following:
CONFIG_TARGET_apm821xx=y
CONFIG_TARGET_apm821xx_nand=y
CONFIG_TARGET_apm821xx_nand_DEVICE_WNDR4700=y
CONFIG_PACKAGE_libiwinfo=y
CONFIG_PACKAGE_libiwinfo-lua=y
CONFIG_PACKAGE_liblua=y
CONFIG_PACKAGE_libubus-lua=y
CONFIG_PACKAGE_libuci-lua=y
CONFIG_PACKAGE_lua=y
CONFIG_PACKAGE_luci=y
CONFIG_PACKAGE_luci-app-firewall=y
CONFIG_PACKAGE_luci-base=y
CONFIG_PACKAGE_luci-lib-ip=y
CONFIG_PACKAGE_luci-lib-jsonc=y
CONFIG_PACKAGE_luci-lib-nixio=y
CONFIG_PACKAGE_luci-mod-admin-full=y
CONFIG_PACKAGE_luci-proto-ipv6=y
CONFIG_PACKAGE_luci-proto-ppp=y
CONFIG_PACKAGE_luci-theme-bootstrap=y
CONFIG_PACKAGE_rpcd=y
CONFIG_PACKAGE_uhttpd=y
CONFIG_PACKAGE_uhttpd-mod-ubus=y

Again, no apparent compile errors during 'make'.
Good enough?