Got it working with a basic A500 with 512k chip mem and 1mb fast mem. Got the insert disk graphic and was able to load and run workbench 1.3 (ahh happy days) from a floppy image.
Here is what I did
1) Downloaded the above linked programs
2) I dragged the Hi-Toro 0.5.0 folder into my applications folder.
3) I put the emulator folder inside this folder and renamed the folder UAE
4) In the Hi-Toro folder I made a new folder called ‘configs’
5) The next step was to get the ROMS. I used the Cloanto Amiga Forever CD. Inside the UAE folder, I made a subfolder named ‘Roms’. I dragged the ROMS (and the romkey decryption if you are using Amiga Forever) in the ‘Roms’ Folder.
6) Next I ran Hi-Toro.
7) In The Hi-Toro menu under preferences, the first line asks for the location of E-UAE. I used the ‘select’ button to navigate to the location. In my case it was at /Applications/Hi-Toro 0.5.0/UAE/E-UAE.app. I then Hit OK

Back on the main screen of Hi-Toro I clicked on Overview. In the description, I put A500. This will be the name of the configuration.
9) On the ROM table, under ROM: I used the select to point the app at where the Amiga rom resides. Do NOT press OK at the bottom as that launches the emulator.
10) Under Key: I pointed it at the decryption key (Amiga forever only) Do not press OK
11) Under Ram: Chip Ram was grayed out but I set the slider for fast ram at 1MB Again NO to the OK button
12) Under CPU I chose the 68010 – No OK
13) Under Chipset: OCS – No OK
14) Under Display: Whatever you fancy. I used smart centering for horizontal and vertical – No OK
15) Everything else I left alone for now – No OK
16) From the Configuration menu at the top of the screen, choose save and save the config in your folder (I used my configs folder)
17) Now Press OK on the Hi-Toro control panel. Should work.