Rattle Can final coat(s)

I've used some garage floor paint on my TD and the third coat has filled in all the wood grain and it now has a semi gloss finish.
My plan was to then paint it with a wood exterior paint to get the final red colour. Now that it's come up so well I'm tempted to use an automotive paint in a spray/rattle can.
The cost is going to be about the same however I'd like some advice on painting with a rattle can and also if you think this is advisable or if I should just go with painting with a roller.
One of the advantages, I'm told that there is red-blue all the way to red-orange so the colour can be "chosen" by looking at cars before I buy the paint.

I don't have a compressor or access to one or I'd consider other options.
Thanks
Grant

My plan was to then paint it with a wood exterior paint to get the final red colour. Now that it's come up so well I'm tempted to use an automotive paint in a spray/rattle can.
The cost is going to be about the same however I'd like some advice on painting with a rattle can and also if you think this is advisable or if I should just go with painting with a roller.
One of the advantages, I'm told that there is red-blue all the way to red-orange so the colour can be "chosen" by looking at cars before I buy the paint.

I don't have a compressor or access to one or I'd consider other options.
Thanks
Grant
