Epoxy might be too strong, and hard to remove later should you have to rework anything in the bonded area. Good for pad repairs, maybe too good for parts support! Imagine trying to break an epoxy bond loose years from now and peeling off some traces underneath in the process...

One approach is to get it to work first, with VERY careful handling of the unsupported parts. When it works, you can consider refinements such as securing stuff better, or more compact self supporting caps such as tantalum radial leaded or SMT parts.