Tell them to talk to the UKwolf trust for advice - they get PL (from zurich I think) to take wolves into schools etc so a husky ought to be no bother for the insurers
just specify that the dogs have to be muzzled and on a short leash, and provide alcohol wipes to clean hands afterwards and do a risk assesment and all should be cushti - I've organised loasdsa stuff like that so if you or they want to talk it through drop me a pm and i'll give you/them my email and phone number
WRT the tethered shooting, I suspect you need a DSLR - maybe hire one for the day , or buy one
second hand from somewhere like
MPB