You say it will not launch directly in MameUI either, correct? If that is then something could be wrong with that chd dump or the bios file (iteagle.zip) . It looks like per your post you have the folder named right and the chd in it. MameUI should launch it as long as the files are not bad.
Launchbox does have issues with MameUI if the mame.ini file is not located in the root folder where your mame exe is, but if it is not even launching directly in MameUI the .ini is not your main issue.