Are you wanting to replace the machine you have now or wanting to add a 2-gun machine so you can have 3 people working?
If you just want to add a machine to have another guy working, just get a cold water machine and add it to the trailer.
I know Espec sells them but I have always heard good things about Hydrotek and know a few guys that run them. They say that the only bad thing about them is working on them because it is so compact, other than that they are great machines.
At the MB Round Table there will be so many contractors, Paul will be there so if you are going, you can have some great discussions about them in person and see one there, it might be demonstrated so you can actually use it and give it a try.
At Tampa, they had a 2-gun system from Espec that was nice!
Get to the Round Table, it is not too late, no charge to attend, just pay for your way there, hotel and your food.
This would be a great opportunity!