Startup Marketing Capital - I will not promote

I have a business where I am creating renderings/visuals for commercial property renovations and developments. I have contacts within commercial real estate and several major brands are currently interested. The challenge I have is dedicating time with a full time job and lacking funds to attend conferences with a vendors booth, since many property owners are wary of a stranger online, at least until there are enough customers where referrals are common. If I could quit my job and attend 5-10 conferences in