My 1st camper van

First port of call i would suggest is to  Google Romahome Owners Club ,should have info to get what you are after

It depends what parts you require! Are they base van parts, the Citroen bit, or are the parts for the habitation bit? 

Make a list, then Google Citroen replacement parts. As JV says, there’s probably an owners group/club.

Hello and welcome. 

We're generally a very friendly knowable bunch on here.

Can you be more specific in your needs? Do you require parts for the base or the habitation area?

There are companies who deal in second hand fittings, sorry I can't recall their names , but I know folk on here have quoted them before. You could try Ebay, preloved etc in the meantime.

I hope you get the chance to try everything out very soon. Stay local, that way you can get anything vital you forgot 😉 and keep your wallet/purse firmly closed until you have done a few trips to ensure you don't join all of us with a shelf, if you're really lucky 😉, or cupboard, shed, room full of ohhh so useful items. 

Do also get your vehicle weighed and check your payload, before you load. It's very easy to overload!

Whoops seems takethedogalong and I posted together but are on the same page 🤣

You seem also to have posted a story here with more details.

I would enquire locally whether there is a specialist garage that deals with the welding side. I think you also need to get a garage to look at what is needed in order for it to pass an MOT. From this you will be able to work out the cost to establish whether it is worth proceeding. As a last result you could sell it on but clearly you would want to be honest about its condition. You may actually be surprised how much interest.  

You are very unlikely to be able to buy a 30 year old camper for £6000 which does not have some issues so the crux is whether spending say another £1000 (assuming you can) would bring it up to a standard where you could safely enjoy it.

Good Luck

David