Well I troubled with this for a while I had a tiny hole in the passenger boot for quite a while and was unable to figure a way to repair your kinda stuck as to change a boot is more difficult than changing a shaft. On top of all that the genuine boot is about £45 and some sell the outer non genuine CV joint and boot between £60 -£70 and I found SNR replacement shafts for £120 left and £135 right so I'm changing the shafts. On top of all that you have the standard problem for finding the correct aftermarket parts of good quality and size because if you check different aftermarket boots like drop links with the genuine part number for reference they show different sizes and you need the tools to work the metal clips to hold the boot on.
I found outside boot
SKF VKJP 1546 boot kit with clips and nut
SNR (NTN) CV joint and Boot kit OJK55.028
SNR (NTN) left shaft DK55.098
SNR (NTN) Right Shaft DK55.103