You know what... I built my 4 gallon sump myself AFTER being taught by Gustavo.
I know you are a "Jr. Member" and you can ask ANYONE in BRS...officer or otherwise, and they will say that I'm a member in good standing and NEVER cause any commotion within the group, but, with that said, I'm bothered by your second post on this thread.
Rather than asking someone to "vouch" for another BRS member, maybe you should have looked around the site, attended a meeting or perhaps PM'd others rather than questioning his workmanship here. I don't mean this as a slam, but the post seemed a bit out of line. Gustavo is not only a master craftsman when it comes to aquaria, but you HAVE to see what he's done with his new home.
Again, you and I may meet up and become best of friends, but I was bothered by that post.
You CAN'T go wrong with getting advice or assistance from MOST of our members. Gustavo is just one of many who can help ANYONE with various projects. He's not only good with construction, but is one of the better people that you'll meet on this 3rd rock from the sun.
Best of luck with your project. You'll not get any of his time until he finishes helping me with my seahorse tank plumbing and hood construction

, but once you meet this guy, you'll have him on speed dial.
Dave