
A better idea is to do a Loan of bitch (there is a Kennel club agreement for this), your not guaranteed that they will want to allow this, but if she works out well you can ask to have her back for one litter.
The ownership of the bitch stays in their name but you own her for the purposes of breeding for the specified time in the agreement (usually long enough to cover two seasons in case she misses.
You sell the bitch to them in the normal way and then pay the owner for the use of their bitch in the same way as if you used a stud dog (so in effect they get their money back if they agree to the idea).
I bred one litter this way, in my case it was as a favour to the bitch owners who wanted their bitch to have a litter but were not in a position to do so themselves. They had Long involvement in the breed as exhibitors and judging,a dn had the satisfaction of one of the pups becoming a champion, albeit with my affix.
In the USA 'leasing' a bitch for breeding which is the same thing is not uncommon among breeders to keep a line going.