Based on your description, you do not have an MVP, but an attempt to find an MVP; what you have is untested prototype or an MVP that for whatever reason failed to validate your assumptions.
Only potientally asset you have to sell is the domain, which in my opinion is a completely different question; that being, how do I value & sell a domain?
The hosting, design, payment & registration systems, etc. - are most likely are liabilities unless proven otherwise given the related technical debt[1]; basically, these are commodities which best acquired from scratch based on the needs of party acquiring them.
Lastly, as you likely know, the point of an MVP is to validate an idea is of value, since ideas generally speaking are worthless; I would actually argue that good, but unvalidated ideas, have on average a negative value, since resources are required to store/process them and most "good" ideas fail validation attempts.
Generally speaking, passionate users are much, much easier to find than a motivated buyer and there is a predictable correlation between the two.
As such, I would argue that if you are unable to find users it is highly unlikely you will find a buyer without knowingly materially misrepresenting the opportunity and/or exploiting a naive buyer.
It's a common problem, thanks for the opportunity to express my take on it.
Only potientally asset you have to sell is the domain, which in my opinion is a completely different question; that being, how do I value & sell a domain?
The hosting, design, payment & registration systems, etc. - are most likely are liabilities unless proven otherwise given the related technical debt[1]; basically, these are commodities which best acquired from scratch based on the needs of party acquiring them.
Lastly, as you likely know, the point of an MVP is to validate an idea is of value, since ideas generally speaking are worthless; I would actually argue that good, but unvalidated ideas, have on average a negative value, since resources are required to store/process them and most "good" ideas fail validation attempts.
[1] https://en.wikipedia.org/wiki/Technical_debt