I was thinking of making a press by getting a disc of metal cut to the outside diameter of the bearing. Drilling a hole in the centre and using a length of studding a couple of nuts and a length of bar to go across the opposite side of the hub. Got a few days to think about it whilst the powder coater performs his magic. Thanks for the suggestions.
Have ordered as set similar to the discs in the red box pic. It only contains 14 various sized discs and the necessary handles, but only cost a tenner though. It would have cost me more than that to have a 42mm disc cut at a local fabricators. Thanks for posting the pics ogri. I get what you're saying coffee, but in my neck of the woods helpful little garages just don't exist anymore. I got my fingers, well wallet actually, burnt a few years back when a local engineering works charged me 35 quid to tap a thread in the ends of my Renthals. Turns out workshop time is 70 quid an hour, minimum charge half an hour. Could have bought a tap and done it myself and saved some cash.
Arrived today, £10.99. If I use it once and have to throw it away, which I don't think I'll have to, I'd be happy. Just need the phonecall from the powder coater guy to say the wheels are ready, and for the bearings to arrive. Then I should be cookin'. Thanks again all for your hints, tips and suggestions, much appreciated as always .
Gloss black at a local firm. They are not a dedicated bike part company, but established in 1947 and have done small parts for me in the past which I've been happy with. I've seen car wheels that they've done which looked ok, but I should find out by the end of the week. I do get what you're saying though, buy cheap, buy twice. Can only keep my fingers crossed.