Lets decide what are the responsibilities of the parties.
Me - provide healthy, sychronized recips (including shots based on agreed protocol and heat detection), facilities for implanting, good herdmanship to get that calf on the ground. Collect BW, WW, tag, worm, medicate if necessary, provide mineral, fly control, creep feed and facilities (dependent on the wishes of the partner????), eartag and tatoo. Would I be responsible for vet fees encountered AFTER the calf is born??? (I think I would)
Partner - provide embryos, pay for vet fee and synchronizing drugs, take away weaned calves on specific date.
what else???
Each party get in return;
Me $$$$$
Partner - a high quality registered calf.
If I can sell a natural calf from my herd for around 650 then 800 doesn't sound like to much for the additional expense and effort, maybe a bargain for the partner!