Hi awct,
i think hard to find a shop that displays all their masterpieces....cos floor space cost money. However, you can visit them and ask them for past job reference and pic to determine their workmanship. Their current display tank is meant to show their workmanship(usually they outsource hence you wont know whether the original maker for their display tank has changed or not....)Few shops in the forum do help customer to customise tank....you can also try other fresh water aquarium forum(yonghua, han teck, etc are rather popular). Good to go to the shop that you feel comfortable with. Most importantly their after sales service and whether they have big heart to continue serving you in a good and friendly manner even though you buy stuff from elsewhere. came to know shop that provide good service but once they know you buy stuff from other shops, attitude changed....lol. So far, for reputable tank maker, there bounds to be customers experiencing bad encounters. Hence, the recommendation is just for reference to reduce such possibility. After the recommendation, the choice is still yours and i think just go with your heart in your selection.