mmmmm PD's......ten UK pounds for two part 2oz bottles does sound expensive ....could be the merchant & not the manufacturer......
In OZ we have the range manufactured by 'Selleys'.......and also a few product manufactured in China....which are very 'general' or 'generic' in their application as marketed ....'5 minute epoxy resin'
A 5 minute exothermic reaction has the potential to warp or move the alignment of the components being bound structurally..........
I have used structural adhesives for model ship building by American manufacturers [3M] ......
I understand that there may be a million differing applications for epoxy resin in model building

....however would prefer to 'stitch weld' with super glue...& then bed the component in with slow cure epoxy...........Derek