My guess is you didn’t know quite how bad the situation was when you took the job, but leaving because resources are not available to do the best job possible, certainly won’t improve things either, for a group that probably really needs your help.

It often seems to me, our job is usually to do the best we can with the resources at hand, and if the desired result requires more resources, than management needs to provide the resources or live with diminished expectations (although they usually don’t). I don’t think I’ve never had a job where we’ve always had all the resources we needed, always a fight to get something axed out of the budget.

Without knowing the scope of work to move your site, but knowing that there are a ton of dirt cheap web sites, some even free if you look hard enough, I’d move the site until you can get funding for your preferred provider. That should also give you a good idea of what you’ll need to re-architect.

I’d also stop paying your current provider, they just might give you a call.