Willing to pay carton tax.

I've recently rebuilt the bowsprit on my boat and due to the lack of a spray gun able to spray gelcoat unthinned, I opted to brush it. The problem is that the results are very uneven and by the time it is sanded back to a factory look the gel is too thin. I have it in usable form again but I have just enough colour matched gel left to have a go at spraying it to build the thickness and hopefully result in a finish that only requires a light sand and buff and leaves me with a satisfactory gel layer thickness. 

I can't find a cheap gun to purchase and don't want to spend a lot on a tool that hopefully I won't use much again.

So if anybody has a spraygun (putty gun) with a 3 to 3.5mm tip that they'd be willing to loan me, it would be greatly appreciated and I will have much acetone on hand to ensure is is cleaned as returned in the same condition.