I have one you might be able to borrow, depending on when you would want it, I do use it every week to take pigs to slaughter. I'm near Ammanford but the abattoir I use is Swansea way so might be able to drop off if timings suit? We struggled to find one second hand, they hold their value and don't come up for sale that often, got this one from CLH in St Clears in the end. Let me know if that's any help?
PS what lambs are you getting?!