Hi Enfield experts, I had my eye on this Enfield rifle for a bit. Just wondering if anyone can help me on the possible history on this one. 
from my research I’ve been able to compile this:

it’s originally British made (most prob Royal small arms factory) in Enfield, hence the stamping. Plus it has a cross swords proof mark from a military ordnance factory, prob original uk. 
 

but there is also some other marks:

an OA on the rear sight side….which is apparently a proof mark of Australian Ordnance, which means it’s been refurbed here in Aus at some point. 
it also I think has a MA mark on the receiver aswell which also can mean Lithgow arms proof mark. 
 

the serial is Q4088 and all the pieces match numbers, so to me it was not a full FTR and maybe just passed through an Aussie factory for inspection before sent back out, maybe to ww2??

 

so my question is, why would it have been made in uk then ended up in Aus, and for what purpose. 
also has anyone seen all these markings on a rifle like this before, and lastly am I right in my thinking and research of all this😁 any help would be much appreciated. 
the pictures included are what I’m sent so some aren’t the best…. I’ve tried to enhance as much as I could. 
thanks guys

 

on addition. the serial number on the nose cap bayonet boss is a struck out number, then the number to match the rest has been put on....indicating the nosecap was replaced in the re-furb.