I have added gas struts (2x150Nm struts per side) see pic.
A lot more sturdy arrangement and a lot easier to lift the bed/seats and is held up without the need of the prop.
I got the gas struts from eBay
a collection of top tips, tricks and ideas, DIY improvements and motorhome modifications that can also be made to caravans, campervans and RVs. Many of these modifications I have made and used on our own motorhome but I have also listed other tips, advice and product reviews that I have found on the Internet including ideas for day trips and visits.
Motorhome Mods UK 