You seem to be referring to the flat tank BSA shown in another post?
Elbow grease is one thing, over keen restoration is another.
No disrespect intended but by asking if any one has any spares for this bike you are showing your naivety; you don't even state what spares you need.
For this bike you will have to shift for yourself in a very big way; personally I do not think such things should be attempted by a novice Do you have any mechanical skills /workshop facilities/ previous experience?
Ebay is full of bikes that have been well stuffed by inexperience; its sad to see vintage bikes going the same way.
That said I wish you all the best if you are going to do as little as possible to get it going the historical interest is in the battle scars not the polish.
As for
retain the heritage of bikes for years to come.
that's all BS that's the preserve of Museums of which there are plenty.
I suggest the sensible option is you find the nearest VMCC section to you and get your guidance hands on from there.
Three essentials to realise
#1 There are no rules, no workshop manuals torque settings quick fixes for this stuff.
#2 political correctness is non existent amongst grumpy old gits when you are asking for free help or hand holding [beer is no substitute]
#3 you cannot fix old bikes over the Internet there is no press F1 to fix problem.
If I could diagnose over the net I would be quite well off by now.
Good luck take it slowly, think before you chuck anything or go looking for new parts, paint and nickel alone do not make a restoration.
Make of this what you will.
Yebbut has been restoring British bikes for over 30 years and was one of the first professional bike restorers in this country [that's above board and paying tax style]