Hirsch Siddur

I have heard that the Hirsch siddur has some Eastern European elements in it, eg it puts birchas hatorah before birchos hashachar and contains the mishnah from peah. However, I did a comparison and it seems to me the Hebrew text and order is taken from Rodelheim. Seems even the typeset is from there. Can anyone comment on this? What siddur did Hirsch use? His commentary on the siddur includes comments on the mishnah from peah.

The Hirsch Siddur did use the Rödelheim text. However, as R' Hamburger mentions in the madrich to Minhag Ashkenaz, R' Heidenheim's siddurim did not always conform fully to the German usages, e.g. birchaus haTauroh, seder hakorbonaus, and birkas minim.

As such, the Hirsch Siddur even includes some elements which were strongly avoided in Germany, such as "Ana bechau'ach" and B'rich Shemeh.

I am presently working on a siddur and while I was initially using the Hirsch Siddur for reference, I decided to refrain from doing so for the text due to the difficulty of parsing a fully authentic text from Rödelheim.

The Hirsch Siddur includes comments on the mishnah in Pe'ah which minhag polin puts after birchos hatorah. Did R' Hirsch's German commentary on siddur include such comments or did the publisher of the Hirsch Siddur in English pull Hirsch's comments on that Mishnah from somewhere else? My question is obviously, if R' Hirsch said birchos hatorah before korbanus and didn't read the mishnah from pe'ah (mitzvos for which there is no shiur) then why did Hirsch comment on it in his commentary on siddur?

What siddur would you recommend for an authentic minhag ashkenaz? I have Siddur Tefiloh Sefas Yisroel by Rabbi Rallis Wiesenthal. But wouldn't that be minhag Hamburg? I'm looking for Frankfurt.

R' Rallis Wiesenthal's siddur was originally minhag Homburg. Homburg is practically right next to Frankfurt, although more recent editions have been brought more in line with Minhag Frankfurt in accordance with R' Hamburger שליט”א. I personally have some difficulties with R' Wiesenthal's siddur, so I just use regular Ashkenaz siddur and amend per the nuscha'aus given in the madrich.

The Hirsch siddur is supposed to be his translation plus his commentary. Yet you'll see translated the minhag polin text for keil erech apaim said when taking out the sefer Torah. I'm guessing that most of it is his translation but somebody else translated the minhag polin parts - parts that did not appear in his siddur. But that's just a guess.

I guess it's possible that he said those portions b'yochid, considering that he was from Altona, which as part of Hamburg, followed certain Polish usages, although I have yet to see how it compares with either Minhag Frankfurt or Minhag Polin proper.