DC Racing (
www.dcracing.co.uk) do a hex screw kit for the Lazer for a very reasonable £10. Think I'm going to get one as a back up set to my Ti screws.
As mentioned above, £220 seems to be the going rate for a ZX5 in the UK. Go to
www.brca.org and click on the shops link. Shops I've used in my time for off road orders online are DMS, Apex, DC Racing. Locally I use Elite Models and Morley Models.
As for the brushless, well I haven't run it yet due to various other commitments, but I'll post back when I have. I'll try and upload some pics too of my brushless gear in my ZX5.
Cheers
AndyG