Pretty certain option one is going to be the route I take. I have most of the parts on hand and the only downside is it might be tougher to sell on secondary market and for that, I could care less. I really do not want to move the parts any further away from each other than they already are, plenty of space in there and sort of defeats the purpose of controlling the air-gap with the robo brackets by having more space being added to make parts fit. four 6mm x 6 or 8mm button head cap screws with some nyloc nuts should suffice. The only downside is you'll have to remove the entire mounting plate to remove the robo brackets and that is not so much a negative in my book.