Generation IV External Engine - lq9 solid motor mounts?

i have a lq4/9 block and woundering if the sphone solid motor mounts will bold up to it. or would i need a adapter plate of some kind? i have a t56 what mount would you guys rec. for that?

I'm building my own mounts. All three will be solid, both motor mounts, and the t-56 to chassis mount.