Alltel HTC Touch to Metro PCS

[swfx]

Hello all:

I have a Vogue which was originally on Alltel (now Verizon). Previous to this phone, I had a Mogul from Sprint with custom ROM. The concept isn't foreign to me. My contract with Verizon is finally up, and I'm thinking about switching to Metro PCS. Here are the versions I currently have:

ROM: 3.10.671.1
Radio: 3.42.30

From what I read, I generally understand the concept that I should have Metro PCS flash my phone, which will wipe out Internet, MMS, and GPS. At that point, I would unlock the phone, load custom ROM, and adjust the settings for Internet. Am I correct?

Here are some additional questions:

1) Which Metro PCS plan should I get since I will actually be using data? (even though they say it will be voice and text only)

2) Will I ever get back the GPS functionality?

3) Which custom ROM is suggested?

I appreciate any help, and look forward to your responses.