Thanks Luke - I have an account on another place for hosting pics. I presume that will be fine, so long as I just get the URL right.
Joel:I am very much looking forward to replies on problem 1. I have had some kits recently where they actually do not supply the antenna's - you are supposed to make them with stretched sprue. I am yet to have success - I usually end up taking wires, pins or whatever comes handy for an arial...
As for painting wheel bolts: are you talking about the big one (that needs to be loosened in changing the wheel - typically in a pit stop) or the small ones on the brake assembly? The big ones I find easiest if you mentally break it up and paint the straight edges first, then fill in the centre. (With you being used to bike wheels, this should be fine.)
The smallish ones, I tried a few techniques and at this stage I take a fine round brush (can't recall the number off-hand, sorry) with a little paint on and simply touch the top of the bolt. It does the job for me - dry-brushing causes more redo's than anything else.
If on a rally car, where they have quite a few smallish bolts to loosen the wheel, instead of one big one, try the following. Paint your rim the correct colour. Seal it wit a gloss layer (NB: Of another type of paint than your normal thinner!). Make a black/brown wash and give the indentations around the bolts a wash, removing excess with and earbud dipped in your normal thinner. Then just dab on the colouring for the bolt - it should stand out really well and you'll have the natural "shadows" in the recesses.
Well, that's just my 2c... Looking forward to alternative suggestions!