I think what you mean to say is a No1 Lee Enfield rifle. Those are typically (not always, some were made for WWII) usually WWI vintage and came in a variety of revisions or Marks. That was a 303 caliber. The other 303 most often encounter is the No4. That are WWII and later history also India. Those also came in a number of revisions or Marks. I am not an expert. Not even close. I have a No1 and a No5 and know enough to "know what I dont know". I am not sure which India made the No1 or No4 or both. Some of the Indian rifles are better than others. All the India made get less respect.
In kinda average condition the No4 is a far superior rifle. BUT!! In original, not rebuilt with magazine cut off,. volley sights and all correct early No1 is very valuable. Obviously dont want sights tossed out and drill and tap for a scope. I guess you are very far from a collector grade No1.
You definitely want some kind of military stocks to include if you can. It is a pain to fit the stocks. I would probably not try that unless I got the gun real cheap and saw a lot of hidden potential.
I dont know what you have but; on average No1 & No4 are not big bucks guns. And as described by you and guessed by me, I am thinking a couple to three hundred maybe. I hope, I am not killing a deal. Actually even 200 could be high without a few things looked at.
These receivers stretch and as they expand new bolt heads are fitted until you get to #3. Then the rifle is supposed to be taken out of service. I believe the No1 had the easy swap bolt head. I shoot nothing but reloads for a couple reasons.
That is a "Lot to Googles". India, bolt heads, head spacing. Is it a No1 which Mark and where and when made. You can go here for good info:
https://www.gunboards.com/forums/the-lee-enfield-forum.55/