Recommendation for buying this expired domain

Hello Team,
It's my first time here. I need a opinion from you. I 'm working in a website ( new domain ), which google only indexed few pages. I have not applied any backlinking strategy yet, and obviously the page rank is 0 because I've been working in my site only few weeks .


Yesterday I found in godaddy an expired domain. The domain's name is cheap and has the following metrics:


opensiteexplorer


- Domain Authority = 25
- Page Authority = 35
- Root Domain = 111
- Total = 491 Link


majisticseo

- Trust Flow = 3
- Citation Flow = 14
- BakLinks = 692


Also this domain has a page rank = 0 but still indexed in google .


What do you Recommend ?


a - buy this domain, and use it instead of my currently domain?, If yes, What should I do with the indexed pages that the expired domain has and will not exist anymore?


b - keep working with my currently domain


c - some other option


Thank you .

Questions for you to think about:

1) how sure are you that this domain is spam free and not penalised by Google?

2) how natural are those backlinks in terms of anchor text? What type of backlinks are they?

3) how relevant is the domain to the niche you are working in?

4) is the domain brandable?

Well, if it's inexpensive, buy it if the backlinks are relevant. You can always keep your domain and 301 redirect the other. If it's expensive, you'd have to measure its worth yourself.

Trust Flow = 3 is very low. It means that links are low quality. But it doesn't mean that it is wrong. All depends of keyword which you are trying to win.

Personally I am buying domain with trust 10+. I know guys who buying 20+ only.