Options for 400 BB to 70 Dart /6 kframe

After much thought, i have Decided to start building a 400 to 500 stroker. The biggest issue other than an exhaust, is motor mounts on a /6 k frame. I know Schumackers arent available, and that I will have to fabricate/cobble them together.
Ideas?
Rusty Rat Rod said big Block spool mounts with a 318 truck bracket. Or I could use elephant ears.
If you wanna fab them I'll send you pictures & measurements how to build them.
Conversion mounts that is. I'm going to run a plate.






For a fee lol