Trailer hubs

Hi, just bought a project trailer, so need some info / help if poss. Would ideally like to put Jimny wheels on it, but failing that, I need to at least find a spare for what I have.. Currently running 165/13, with 4x112pcd and 70cb. This appears to be an awkward pcd. So, does anyone know if you can get an adapter for this to a more common pcd, or can the hubs be changed? Thanks. (Will update with pics upon completion!) 

Quick update - I need glasses, or a better way to measure accurately! Got hold of an old Volvo S40 steel wheel, and that fits (so at least I now have a spare wheel). So hub would seem to be 4x114.3pcd with 67.1cb. Anyone know of an adapter for this to Jimny wheel size? Obviously don't want to spend hundreds. Cheers

I am sure people use a front Jimny stub axle 
Welded to the trailer drum 
Then use front bearing hub from Jimny 

I once had a machinist re drill a pair of trailer drums on a mill for a tractor trailer and that seemed to work. Wasn't used at high speed though.

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Type in Jimny trailer 
User name Riccy 
This shows it done 

4x4.5"pcd. Nobody will make an off the shelf adapter because the Jimny uses an equally obscure size, but I question the need to fit Jimny wheels? I know it seems like a sensible idea to have the same wheels on your car as the trailer, but in reality Jimny wheels are far too big and heavy for that size of trailer. A trailer needs its own spare anyway, so you're better off finding one spare to match the others (£50 on ebay), which will fit neatly behind the hitch against the trailer headboard.