Quote for a VB.Net project

I have an Excel app. that I might want turning into a stand-alone program at some point in the near future, but I have no idea how much this would cost. I made the app. myself in Excel but I don't have sufficient knowledge of VB.Net to turn it into a stand-alone Windows program.

My website (where I am currently selling the Excel version) can be found at:

http://www.sudsolutions.com/

The application is called RainCycle - just follow the links to download the demo, or use this link:

http://www.sudsolutions.com/rc_downl...Cycle_Demo.xls

There's also a downloadable user manual on the website, or use this link:

http://www.sudsolutions.com/rc_downl...ser_Manual.pdf

I'm not asking people to go through the entire manual and demo, but I would appreciate it if a programmer could have a quick look at it (enough to get an idea of what the app. involves) and then come back with a quote for how much it would cost to turn it into a VB.Net application.

Also, information on the following would be appreciated:

1) How much post-programming support I would get e.g. with bug fixes and so forth.

2) If the possibility of alternative payment methods exists e.g. instead of a fixed sum, say a % of the profits from any sales.

3) How the payment process is normally set up e.g. if someone is working to a fixed quote, would I need a legally binding contract with them or do people usually just take each other's 'word' on payment and such? I assume the way it would normally work is that the programmer would finish the app, then send, say, a time-coded or 'locked' version of the app to the client so that they can make sure it's what they want. Then the client pays the programmer, who then sends them the complete and activated version of the application.

Sorry for the n00b questions but I have no idea how the programming business works from a programmer/client point of view.

Thanks
-Rob

Looking at the project and seeing the excel file(what I could from the demo), I would recommend that you try it, it looks as though there are plenty of vba macros in there and you know vba and vb 6 is not that different (it is very similar) and if you managed to create that spreadsheet you already have a good grounding and after a few weeks of reading up you could be well on the way to writing it on your own. I myself am reasonably new at programming so I doubt I could accept an assignment from anyone just now but I got into visual basic by way of VBA in excel so if it can be done in excel it can (reasonably easily) done in VB.
Yours Orisons

"rumours of my demise have been greatly exagerrated"