T series Enfield Question- Value??

[Limey-]

I have a T series Enfield with changed buttstock and Roger Payne repro mount in excellent condition bayonet mount cropped with one inch of barrel
probebly for Africa i have heard from various sources.
I am going to sell it but whats it worth these are as rare as hens teeth but all things "Sniper" are on the "UP" so gentlemen what should i list it for.

thanks in advance