Hi, welcome to the forum.
my point of view.... after 40+ years of Brit bikes is my view as a worker on a budget rather than a 'professional' restorer. Entirely up to you and your budget. many will look for total 'concours' resto's or an oily rag daily user.
I did up , complete strip down and rebuild, a pair of A65 Thunderbolts. these were done using my work contacts and used daily . our tooling rep I always had disputes with. His restorations were 'concours' , better than when left factory, he trailered them everywhere and won prizes but never rode them.
I now have an A65, A7 and Triumph T100. All are chops/bobbers. It would cost me more to put them back to original and would rather ride than leave them in the garage where things can fall on them!
Entirely up to you.
As for the chrome tank, Indian modern replicas are poor quality. modern chroming is bright nickle not chrome. Its not as deep and from experience subject to rusting from under the layers. Our chrome is outlawed as it contains cancerous chrome, our engineering company has had to change its plating needs due to this.as someone who has had neck and thyroid cancer and regularly used chromate and di-chromate plating I can understand why!
entirely up to you and what you want to use it for.