Q: Thank you for this ministry!
Is it correct for a properly instituted Acolyte to wear their Acolyte vestments while solely leading a Holy Communion Service (weekday) in the Church Sanctuary?
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A: Yes, that would be fine. The Liturgy of the Hours restricts usage of the presider’s chair to the priest or deacon, and asks others who lead to remain in the body of the church as “one among equals” (GILH 256 and 258).
But I don’t see any such distinction for a service of holy communion outside Mass. At church, the minister needs access to the tabernacle and altar, so there shouldn’t be a problem leading the rest of the service vested in alb or cassock and surplice from he sanctuary.