Please help save my kids

Their mother who has a long history of mental issues, and problems including child endangerment has filed a order of protection based on false charges against me and taken my kids out of state, I need this money for legal expenses, Ive found an amazing lawyer, but shes says gathering all the evidence I need will be costly, but she is VERY confident we will win based on my evidence. Ive had to get a continuance once already for this case which now means it'll be another month before I can even talk to my kids, Elise 2.5yrs and Karl 1yrs, my kids are all I have in this world, and all that matters to me. Where they are now is neither a safe or nurturing environment and their mother is very unstable, with really no telling of what shes capable of. Please help bring back my kids to the loving and safe environment that my miracles deserve.