No, there aren't any levites in my neighborhood to do those special duties.
You may have meant that to be funny, but there are many things you can't do that are part of Torah, including festival observance.
You can make something up that you call the Torah and pretend like you're observing it, but you can't observe the Old Covenant.
Deut 14:
22“You shall tithe all the yield of your seed that comes from the field year by year.
23And before the Lord your God, in the place that he will choose, to make his name dwell there, you shall eat the tithe of your grain, of your wine, and of your oil, and the firstborn of your herd and flock, that you may learn to fear the Lord your God always.
24And if the way is too long for you, so that you are not able to carry the tithe, when the Lord your God blesses you, because the place is too far from you, which the Lord your God chooses, to set his name there,
25then you shall turn it into money and bind up the money in your hand and go to the place that the Lord your God chooses
26and spend the money for whatever you desire—oxen or sheep or wine or strong drink, whatever your appetite craves. And you shall eat there before the Lord your God and rejoice, you and your household.
27And you shall not neglect the Levite who is within your towns, for he has no portion or inheritance with you.
My understanding is that this is talking about the Feast of Tabernacles or Booths. How can a person come before the Lord in the place where he will choose, if there is no one to specify this?
In my Sabbath/festival keeping cult, the church leader chose it, but this is not faithful to Scripture, as God himself needed to choose it, and these individuals had no authority to choose the place. There's no proof of their authority. They can claim what they want. Right now about 20 other individuals claim Herbert Armstrong's mantle of authority. In reality, though, they can't prove their authority.