Getting MA VIN for out of state titled car

[dsmith74]

Hey All,

Has anyone here purchased a completed car, titled out of state, and then titled/registered it in Massachusetts?
If so, what is needed when you got to the MA. State Police for inspection for a new MA. assigned VIN?
Reason I'm asking is because I know when you go to inspection with a newly completed car you need every receipt possible to prove nothing is stolen, but what about if the car was built by someone else, or by the manufacturer, and titled out of state prior to titling it in MA?

I spoke to a guy at the RMV this morning regarding this and he gave us a form to fill out for a new MA. Assigned VIN, said to fill it out and go to one of the state inspection sites. I asked about any sort of documentation including receipts/bills of sale or MSO for the car and engine...and he said they weren't needed because the car is already titled. Just bring the title and they'd stamp the out of state title and assign us a new VIN.
I also checked out the RMV site...and it says "Certificate of title if used", but I'm skeptical...and would like to make sure all our ducks are in a row.:

RMV- Massachusetts Assigned Vehicle Identification Number (VIN)

Is this correct?

Also, the sheet for inspection sites they gave us said "Walk in inspection sites", is this true? I thought we had to call ahead of time and set up an appointment...but even the RMV site mentions them as walk-in:

Inspection Site Locations

There are several walk-in inspection sites located throughout the Commonwealth. Inspection hours are from 8:00 a.m. to 3:00 p.m. on the days* indicated.

RMV - Salvage Inspections

And one last thing, sorry, he didn't have us pay anything...but the RMV site states that a $50.00 fee must be paid at the RMV prior to inspection...and we need to bring the receipt for payment. Is this true as well?

Thanks a lot, -Dave