Hi Danny
We run SWB Connects, all bar one has been great, the "rogue" threw a rod at 84k, we fitted a recon engine, total cost £1,200 and runs well.
The T200's (625kg payload) have 350L tanks and weigh 1990kg fully loaded (including driver) the GVW is 2225, the T220 (825kg payload) has a 500L Brodex system, you can fit a 500L flat Wyedale tank with space for reel but it's tight, it weighs 2140kg fully loaded (including driver) the GVW is 2225kg.
Overall very happy with the Connect and will purchase T220's in future.
Hope this helps
John