Recommendation and Pricing

The Sinar: I have used a P2 for 15 odd years on location photographing architecture, so: YES it is verry well suited for it.
However, you don't say what model Sinar you are talking about.

The 75mm will be used mostly although you should check out the Image Circle of this lens, I have the Schneider Super Angulon
The 180mm will be used a lot, lot less in architectural photography, but is a fine lens nevertheless.

The 75mm Mamiya is longish for this type of work, you should have a 50mm aswell for interiors.

Value of the Sinar kit depends on the model: a F model is a lot less expensive than a P2 or P3.
For the value of the lenses you can check KEH.

Peter

 

About the model, the earlier F had a chrome base rail, the later models, which also include the F as well as the F1 and F2, uses black base rails.
Take a look at *bay and search for "Sinar F". There you will find enough large detailed pictures so that you can identify this particular camera.
The value of the camera does of course depend on the model, age and wear, so an F is (US) $200-300, while a nice F2 is >$500. The lenses should also be $2-300 a piece.
To sum up, given that the camera is a chrome base-rail F I would start with an offer around $500 or so. (If the camera is newer, or even an F1 or F2 I would offer a bit more.) Do point out that you intend to use the camera and learn LF photography, rather than just trying to make a few bucks from reselling the separate items at e.g. *bay.

Last, about the choice of camera. I personally use an F2 for my outdoors LF photography. While it's not the lightest or smallest camera around, it's very easy to use, compared to most other types and models of cameras around. It is also very easy to learn LF with, as it got built in gadgets for setting both DoF and tilt/swing with precision.

//Björn

 

SINAR is an acronym: Science, Industry, Nature, Architecture, Research, or something along those lines. The F series is the basic, introductory model, and is the lightest in the line. It will do you well for architecture work. Yes, it is intimidating if you've never used large format before, but it is a good camera.

Peter Gomena

 

Well, if you've never used a LF camera before, one of the (IMHO) best cameras to start with is a Sinar. The fact that there are precise scales for almost everything will help you a lot in the learning process.
One of the things which is special with almost all LF cameras is the ability to tilt and swing the lens plane and/or the film plane. With a Sinar it's quite easy to use these scales and gadgets to get the tilts and swings right on the first try. I.e. this will speed up the learning process with better end results from the very start.
But as you havn't bought a LF camera yet, all the technicalities can wait. There will be a lot of questions down the line. Anyhow, whenever you decide to take the leap: Welcome to the world of LF photography!

//Björn

 

The lens kit is not ideal for the intended use. 180 is a long normal on 4x5. 75 could be useful in principle, but the image circle of the 75/6.8 Grandagon is fairly tight for 4x5, not so useful for architecture work.