Pardon me but how do you expect the shoes not to crease considerably if you wear them almost every weekday (4 times a week) as you mentioned? Creasings will be the case and will always be for all shoes (even for high-end range). Personally, I find and feel certain creasings as a form of art/beauty itself. It depicts a certain aging process. Good shoes creases.
Plain toe shoes will always crease more and wholecuts will most likely crease the most. Like our skin, leather is subjected to creasings and few of the ways to minimise (not eliminate) them is to rejuvenate it with Saphir reno/creams and inserting shoe trees (as you, Wryer, mentioned earlier). I have a pair of Ed Et Al's RTW (4th collection range) dark brown captoe oxfords 'Cityhall' model going well for 2 years now. Shining the toe caps with wax is fairly speedier(as compared to initial sessions) and the leather absorbs reno/creams at a decent rate, giving it a matte finish. It has also developed a nice two tone patina. It ages well, I believe.
Loake 1880 range are a decent entry level for English goodyear welted shoes. Locally, you can visit Robinson's Orchard to determine your sizing, albeit limited range and stocks. If you're comfortable with Ed Et Al Euro 40 ('E' width), I think you will be fine wearing Loake 1880, size UK 7, with a bit of roominess at the toe box area.