英国采购需求：附属房间帐篷、汽车附属帐篷、车顶附属房间帐篷、带附属设施的车顶帐篷、遮阳篷和附属设施、车顶帐篷

I'm looking for information regarding the compatibility of an annex for my wildland vehicle. I'm specifically interested to know if the annex designed for this type of vehicle can be fitted properly. Additionally, I would like to inquire about the pricing for this product. Considering the stock situation in the UK, I want to determine whether I can place an order with your factory. Your prompt response would be greatly appreciated, as I'm eager to proceed with my purchase. Thank you!