500T is rad and looks great when hand processed or ECN-2 machine rem-jet (removed by water jet) run. I am trying to do something different. I have an idea of what possible dyes I will need to use but just wanted to get some input on here. But I can figure it out just fine if the only suggestion is not to try to add my own anti-halation onto my film and homemade plates.
Use quality fresh film , good lens , good exposure control and good developer with control and you will gain more than your ram jet.
Yes I know what it takes to make a good photograph. I also like to try new even crazy approaches to creating images. Sometimes that is expired type 55 or 669 or sometimes making something completely myself like a wet plate or using a hacke brownie lens on sheet film. It's all for the love of photography and creating images.
There are a series of Oxonol dyes that might work then.