Leasing offer ???!!

Hello together, have a question the following situation. Would like to buy me a new transporter. Have a firm company for which I drive and some private tours. I picked out the best leasing offer from all dealers in the area and the following has come out. Citroen Jumper 30 L2H2 101 PS a few extras like wood lining, rear view camera etc. Regular price: 32.100 € incl. My price: 22.340 incl. leasing offer: Advance payment: 6095,- incl. € Rate: 399,- incl. 36 months, afterwards a Takeover of 3500,- incl. Since the current transporter is paid, I wanted to know if the rate per month is usual or manageable. For tax reasons this leasing is then of course a 1. Hope, you can help me a little and speak out of experience !! Greetings and a Hello