I think type one is chademo, mainly for asian cars, but all european cars run on type 2/ CCS, Tesla's run on this too. I can see chademo getting wiped out by CCS, and asian manufacturers switching to CCS, or their exports will need to be CCS. It's like the VHS v Beetamax thing, there's no point in having two options, one will win.
This link below might work, but to be honest, I wouldn't risk it.
https://evcables.co.uk/products/typ...HPfGDl0K1RJ6_Kc5M9_gjbaZQYLHE0SsaAszbEALw_wcB
If I was you I would order a type 2 charger box, and sell the type 1 on ebay or something. Maybe see if you can find someone with an asian EV who can test it, and maybe video that or take some pics of it working, so you have some evidence before selling etc. Or maybe sell it with it connected to the house, and your buyer can test it, then get it removed later? The electric supply cable to the box won't need changin, so you're already most of the way there. To be honest I'd probably switch it over myself, but would advise anyone else to use an electrician.
I had a charger box on my last house, but on this one I just fitted a commando socket, and the cable thing which came from the car does the middle bit, and I get 7kW charging, which is the best you can get from a single phase supply (which most houses have). Don't really see much point in using the wall boxes, and the extra cost, as the features are largely pointless now (unless you have solar/ battery storage etc), as most cars can do their own charging schedules etc.
Here's some info on commando sockets:
Commando socket or charge point? This guide reveals everything you need to know about Commando sockets for EV charging, so you can make an informed choice.
topcharger.co.uk