Motor Plate Guys

[kansasc10]

I was going to go with solid motor mounts and a poly trans mount but am wondering if its time to go with motor plates instead. I have a 505 BBC making around 700hp and will be spraying 200 to 300 on top of that. Ive never messed with motor plates so I was hoping you guys could give me some advice on which to use and best way to mount everything. No cage (yet) to tie the plates into unfortunately so itll have to bolt or weld to the frame. Does anyone make a plate kit for a 72 c10? All I have seen seem to be for LS or sbc.
Thanks in advance.