I am wanting to get a 10mm. I don't have enough money to buy a G20 and ammo. I have a Glock 21 with 7 mags and 1500 rounds of 45. I just sold my 357 mag. I loved the power, but not a 6 shot revolver guy. Would it be worth it to sell it all and buy the same setup in 10mm for the G20? I have thought about a conversion barre for the G21, but dont want to trust my life on a conversion. Thanks.