Toast Roper boots- if you have had them can you give me some advice?

[Milmingebag]

I have bought a pair off eBay after getting boots lust. They are natural oiled leather but I can't seem to find any info on how to clean and maintain them so how do I go about it?

Is it worth having rubber soles popped over the leather?

Also what is the sizing like? < hoping they are on the large side>

Are the shoes from there generally good quality do you think?

TIA