
No responsible bitch owner would allow a bitch to go to an inexperienced un-tested dog so the people who may use her dog will be as irresponsible as she is, probably with no knowledge of the mating process at all.
As the stud dog owner it will be up to her to supervise the mating, sometimes acutely in a hands on way. The safety of both the dog and bitch are the dog owners responsibility and should either be injured by the mating process or from a bite, and handlers can get bitten as well as the partnering dog, and genitals can be badly damaged particularly if the tie is not well handled.
It is normal for the stud owner to put the bitch and the bitch handler up for one or two nights, feed and entertain them. You also need somewhere for the animals to get to know one another and to perform the act and to be able to separate them afterwards.
Most bitch owners will expect two or three matings for their money, over a course of two or three days.
Each mating can take from twenty minuets to 2 hours, so in the region of 1 to 6 hours on mating duty and supervision of the socialising time, sometimes several hours, plus the catering and hospitality, and you will get, if you are really lucky, about £300 for an unproven dog of no particular merit or pedigree.
You will be responsible for the progenies for the rest of their lives, apart from their health you may be responsible for re-homing and/or the cost of kennelling. You will be liable for any damage done to the bitch or the bitches handler at the time of mating or ill health of the bitch after mating if struck down with an infection, you are also responsible for any damage or infection your dog may acquired via the mating as well. You are responsible to check on the health of the bitch being served, a bitch dieing of a heart attack whilst being served is unpleasant and could be very expensive. Likewise the kennelling supplied for the bitch must be of good quality and of a size suitable for the bitch.
On top of that you may need to apply for "change of use" from your home unless you have kennels available.