Carburetor spacer for Briggs and Stratton Sno/Gard 62000 (Snowblower Hako 6009H)

I have a Hako Snowblower with fairly rare Briggs and Stratton Sno/gard 62000 two cycle engine. Bought for cheap with carburetor problem. My attempt to overhaul original carburettor failed. Original diaphragm set for this carburetor costs about 100$! I've tried to make DIY diaphragms but no luck.
Finally I have decided to go with stock universal diaphragm carburetor for brush cutter. [Here is a link to ebay (just for example, random seller)](https://www.ebay.com/itm/Chinese-Brush-Cutter-Trimmer-