You could do worse than to look at Gemstone Trading and Connaught Shaving . . . You could have your order delivered to your hotel or wherever you'll be staying
A minor point but I'll throw it in anyway: I didn't get on well with the current Boots shave stick (poor lather, slight burning reaction on my skin even prior to first pass) BUT the Palmolive stick fits perfectly in the Boots plastic shave stick tube. At only £1.75 I reckon it's worth buying Boots for the tube alone if you're a Palmolive user.
Do you still have that video of the budget UK/Euro pack of shave gear that TSR sent across the pond a while ago, not sure exactly how much has changed since then but it would good to see.
La Toja Shaving Cream - 150ml tube from Gemstone for £3.99. A very small amount lathers in 30 seconds, even in hard water.
Lord Super Classic Stainless Blades - £12 for 200 Connaught. Smooth, mild and reasonably sharp. Very important to source blades with the silver security strip across the green pack, introduced in 2010 after useless fake Chinese blades were given poor reviews on the net. Scored 12 on the spreadsheet.
Good for 4x 2 pass shaves.
Weleda AS balm, not cheap at £14/100ml, but performance is amazing, immediately eases burn and a little goes a very long way, I find good value against Proraso AS balm, which I always used before.