I have owned about 9 or 10 of them over the years -
When I started buying them, they were around $70 each. I have had ratty looking ones, several from WWI, one with a ringed bore and awful rifling. They ALL shot well, even the one I got for next to nothing because of the poor bore condition.
Clean it all well. Get some info on them from one of the many web sites full of information on the SMLE.*
Determine if you want one with the rear peep sight ( easiest for me to shoot well) or the old style open sight (maybe a smoother action).
The mags are NOT supposed to be removed to load - load them from the top with stripper clips-it is easy to bent the feed lips by removing them and jamming them back in place loaded.
FWIW, the Indian made Ishapore rifles have their own fans and they are as good as any others. FTR means that rifle has had a Ractory Thourough Repair - a factory bebuild - and the cheap black paint was done on purpose at that time - it was the standard finish for the rifles used post WWII.
The .303 British is a great cartridge, can be handloaded very hot and in a versatile range of bullet types, weights and charges - it is about like a mid range .308 Win.
I have owned many major and some pretty obscure surplus rifles over the last 45 years, and the only one I own now is an Indian Enfield. It has the best trigger of any issue rifle I have ever shot, and is a real gem-extremely accurate.
mark
*Link here:
http://www.enfieldrifles.ca/