Hi Steven, and welcome to the Thorn Cycling Forum!
Not meant in any way unkindly, but I've always taken to heart the old Packard (long retired American brand of luxury car) slogan, "Ask the man who owns one" when it comes to researching my buys.
Be it tents, sleeping bags, bicycles, cars, or appliances, those online user reviews and marque-specific forums can really give a fuller picture of how a product performs across a wide range of users in a variety of conditions over time. Sometimes, a premium product that is priced higher than competitors will get such uniformly good reviews as to reassure a potential buyer. Western Mountaineering sleeping bags are like that.
This being a Thorn-sponsored Forum, you're most likely to get steers toward Thorns here, and they're well worth considering. If a new one is a stretch, a number of used ones often appear in this season at fantastically low prices as people move on to new steeds before embarking on Spring/Summer tours. Our own Bikes For Sale board is a good first stop to see what's available:
http://thorncyclesforum.co.uk/index.php?board=16.0 Also, Thorn's sister company, SJS Cycles, often runs specials on demo bikes and premium-condition used bikes. See:
https://www.sjscycles.co.uk/search/?term=thorn&category_list=757Thorn/SJS Cycles also sell a wide range of bikes on eBay, ranging from shop demos to serving as a broker for trade-ins. See:
http://www.ebay.co.uk/sch/sjs_cycles/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p3686I can echo Bill C's suggestion to take a good look at a high value Sherpa spec. They're incredibly versatile, good bikes that will see you through most touring challenges.
As for your other question...
I also don't have a huge stash of cash, would it be appropriate to ask for discount? How much would you ask for?
...generally, when an item is listed on eBay at a "BuyItNow" price, there's no room for negotiation like there is when a seller offers the item with a "Or Best Offer" option. I always consider the "BuyItNow" price to be firm, as eBay actively discourages price negotiation or offsite haggling at the expense of auctions or listed prices.
Best of luck in your quest and all good wishes in your touring plans,
Dan.