Assuming this is a genuine request:
T2 Structure rigs are not a good place to start for a beginner. Yes, they are high margin, but as a trade-off, they are low volume.
In this case, your rigs will sit on the market for a long time with your investment sitting idle, while you wait for somebody to purchase it.
T2 rigs are a great place to start, I would recommend smalls to start, and get used to the process and the T2 salvage market that way, then work your way up through the sizes.
Some small T2 rigs have margins of up to 150%, with high volume. Your investment is getting turned over quickly. You are making 150% margin once a day rather than once a week or less. An added bonus is as @Solonius_Rex said, they only cost a few million, not 40 billion.
Now some advice for loans in general.
The most obvious being Do not ask for an uncollat loan on your first day on the forum. You are going to get laughed at.
Do not ask for large sums of ISK first up. People want to get to know you and know you deliver on your promises before risking larger amounts.
Have a solid plan. Not just “Some guy in SC Lounge told me to get some ISK and make T2 structure rigs”. Research yourself, work out what you are going to do, outline it to your investors. If people are investing in you, they have more than enough ISK to worry about crashing your markets.
Give some history on yourself. What have you done in the past for ISK making, how long have you played the game, who have you played with? The more truthful information you can give to people about yourself, the more likely they are to trust you. I say ‘truthful’ because your lies will almost always be found out in this game. Some people have some serious investigation skills.
Finally Do not respond negatively when asked questions. Honestly think about the questions and think about why they are being asked. Will finding the answer to those questions solidify your plan? Or does it make it seem less viable? When you get defensive over questions or statements it makes you seem childish and if you can’t form a decent response it means you haven’t thought your plan through.
I hope this helps you out in some way for your future in Eve, and good luck.