Speaking of metal toe caps, I just had my Carmina loafers fully re-soled, re-healed and metal toe caps installed at Coombs in the Strand. Results were pretty good for the price and turnaround time. The sole stitching is fairly rustic, but without sending it back to the factory I wouldn't expect much more.
Quite a lot of wear for something resoled (recently?). Do they provide you with a choice of soles? Was thinking of buying some JR soles.