that's a Shingon practice, and shingon exists today...why not consider attending an IRL shingon temple, or even considering applying for monastic ordination?
there's even a temple\sangha in a*stralia ,I think in u**k, and netherlands too

>>40517025
there's Shingon also, in Australia.
I know Tendai mixes esoteric with mainstream practices, does pure land too, and lotus sutra
>and lotus sutra only-nism gave rise to Nichiren buddhism!