Hello,
The laser should only need minor alignments if any but I have to advise you of this anyway.

The polarization ratio is better by far than an LHP 927 since the Spectra Physics design has two Brewster windows, not one. It should be near 1000:1 horizontal I believe. If you need to rotate the polarization use a 1/2 wave plate for Helium Neon (632.8 nm) red.

You friend is welcome to see the laser or even buy it for you and ship it. The laser has been used but has more life remaining then has been used. Works perfectly and around 40 mW, stable. $1,500. I could also sell you an Melles Griot LHP 928 at the same price-your choice. Shipping to the UK would be cheaper for an LHP 928 than for a SP 127. Don't ask me for a shipping quote, assume at least $300. I pack, FedEx weighs and measures, it is what it is. No markup of course. Phil