Does this Bronze Age-inspired Temple Economy work?

I'm building a world that's heavily inspired by ancient Near Eastern temple societies, and I'm trying to make an economy that is geared towards supporting temple-clans that also control a large amount of the people in the society, through blood ties and religious obligation.

I'd love some feedback on how well the below system works. Note that I'm not gearing this to be a "good" economy as such - slavery can exist, and I'm not averse to it collapsing under its own contradictions eventually. But I would like it be coherent and functional to some degree.

Key features:

* Temple-clans are the main economic actors. * These clans have their members render services for payment in kind. * Payment between clans and with outside economies is managed through silver, which also acts as a currency of record and trade between external entities. This external relation is mediated by trade guilds affiliated to the temple-clans, under their patronage. * All land and productive capacity (including worshops etc) is claimed by the temple-clans, and offered on a tenancy basis to clan members. This tends to be hereditary, but technically reverts to the temple-clan directly on death and be reassigned to anyone. * Manna-type food is generated by temple rituals, and provided as a free dole to clan members by the temple-clans. Excess food goes for animal feed. It can also be made into clothes, but it's an indication of being either extreme poverty or poor taste to do so.

The token economy:

* People who engage in the rituals to generate food are granted tokens by the temple-clans. These tokens can then be spent by the ritualists on other goods in the society. They have a nominal silver value, but can't actually be exchanged for silver. * Tokens can be reused once generated (like normal currency), until retired (one of my main questions on this below).

Consequences:

* Meat and vegetables both become luxuries. * The only arable crops are animal feed, and non-food crops (eg jute, hemp, flax etc). Clothing is a sign of wealth; the climate is mild enough to support relatively clothes-free wear (think ancient Egypt), and so clothes become status symbols. * Because animals aren't needed for labour and meat is a luxury, herds become a form of transmissible wealth outside the token-and-silver system; they can be more easily traded directly than other goods, and can generate a variety of other things.

I need to find a way to remove tokens from circulation, otherwise there will be endless token inflation. I had the following possibiltiies:

* Tokens are only valid for a certain number of years after their production. * Tokens are only valid until the original producer dies; they they become magically inert. * Tokens cannot be inherited, and any possessed by a person at death become grave goods.

I'd love to know what folk think of this setup, whether there are any glaring problems with it. Like I said, I'm not after this being fair or perfect, just functional.

I've already had the critique that if only ritual work generates tokens, why would anyone bother to do anything else. However, if that were true, then no pre-currency society would have functioned in this world. From what I can tell, much trade went on with in-kind payments based on nominal silver values to regulate the barter, which I want to replicate. So I don't think that only one kind of labour producing tokens is in itself a problem.