Rear storage box, not Fiamma.

[headlight]

On the back of my van I have chassis rail extensions of 60mm X 40mm (I think) that stick out 500mm.
At present there is an aluminium tray of 1400mm X 500mm bolted to them.
There was an invoice from Armitage Engineering in the vans paperwork stating this was a scooter tray, rated to carry 200kgs.
At present I have a large "cargo bag" on this tray.
Above the tray I have a Fiamma 3 bike rack on which I have a Fiamma rear cargo bag.
I would like to remove the tray and the fold out part of the bike rack and place a solid storage box of 1400mm x 550mm X 500mm for better security.
I have had a price of just over £700 for a 2mm aluminium box of the above dimensions from Worrell Engineering.
Is this price reasonable and do any members have any suggestions as to other options or better priced companies.

 

[headlight]

Meant to say the quote is from Warrell Richards.

 

[Jamesh]

Don't know but watch your rear axle loading....?

 

[headlight]

There will only be about 40kgs in the box plus the weight of the box which is about 20kgs so about 60kgs total.

 

[the1andonly]

I previously used a trailer tent fridge box.

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[headlight]

The reason I want to do away with the 2 storage bags is that they can be easily broken into.
I don't want a Fiamma rear box or similar as I don't want 40-50 kgs on the bike rack due to the strain put on the back wall.
A box on the rear chassis extension frame I have will mean no strain on the back wall and a solid box would be much more secure than my present bags.
My concerns are that buying "blind" off the internet means I have no idea of the quality until the box arrives and as I have only been able to get one quote I have no idea if the price is reasonable or not.

 

[headlight]

My payload is 580kgs so I think I'm fine weight wise.